438157720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:426

約数の個数: 256

約数和(自身を含む): 1370234880

約数和(自身を除く): 932077160

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 31, 35, 40, 44, 52, 55, 56, 62, 65, 70, 77, 88, 91, 104, 110, 124, 130, 140, 143, 154, 155, 182, 217, 220, 248, 260, 280, 286, 308, 310, 341, 353, 364, 385, 403, 434, 440, 455, 520, 572, 616, 620, 682, 706, 715, 728, 770, 806, 868, 910, 1001, 1085, 1144, 1240, 1364, 1412, 1430, 1540, 1612, 1705, 1736, 1765, 1820, 2002, 2015, 2170, 2387, 2471, 2728, 2821, 2824, 2860, 3080, 3224, 3410, 3530, 3640, 3883, 4004, 4030, 4340, 4433, 4589, 4774, 4942, 5005, 5642, 5720, 6820, 7060, 7766, 8008, 8060, 8680, 8866, 9178, 9548, 9884, 10010, 10943, 11284, 11935, 12355, 13640, 14105, 14120, 15532, 16120, 17732, 18356, 19096, 19415, 19768, 20020, 21886, 22165, 22568, 22945, 23870, 24710, 27181, 28210, 31031, 31064, 32123, 35464, 36712, 38830, 40040, 43772, 44330, 45890, 47740, 49420, 50479, 54362, 54715, 56420, 62062, 64246, 76601, 77660, 87544, 88660, 91780, 95480, 98840, 100958, 108724, 109430, 112840, 120373, 124124, 128492, 135905, 142259, 153202, 155155, 155320, 160615, 177320, 183560, 201916, 217448, 218860, 240746, 248248, 252395, 256984, 271810, 284518, 306404, 310310, 321230, 353353, 383005, 403832, 437720, 481492, 504790, 543620, 569036, 601865, 612808, 620620, 642460, 706706, 711295, 766010, 842611, 962984, 995813, 1009580, 1087240, 1138072, 1203730, 1241240, 1284920, 1413412, 1422590, 1532020, 1564849, 1685222, 1766765, 1991626, 2019160, 2407460, 2826824, 2845180, 3064040, 3129698, 3370444, 3533530, 3983252, 4213055, 4814920, 4979065, 5690360, 6259396, 6740888, 7067060, 7824245, 7966504, 8426110, 9958130, 10953943, 12518792, 14134120, 15648490, 16852220, 19916260, 21907886, 31296980, 33704440, 39832520, 43815772, 54769715, 62593960, 87631544, 109539430, 219078860, 438157720]

約数ペア:

[(1, 438157720), (2, 219078860), (4, 109539430), (5, 87631544), (7, 62593960), (8, 54769715), (10, 43815772), (11, 39832520), (13, 33704440), (14, 31296980), (20, 21907886), (22, 19916260), (26, 16852220), (28, 15648490), (31, 14134120), (35, 12518792), (40, 10953943), (44, 9958130), (52, 8426110), (55, 7966504), (56, 7824245), (62, 7067060), (65, 6740888), (70, 6259396), (77, 5690360), (88, 4979065), (91, 4814920), (104, 4213055), (110, 3983252), (124, 3533530), (130, 3370444), (140, 3129698), (143, 3064040), (154, 2845180), (155, 2826824), (182, 2407460), (217, 2019160), (220, 1991626), (248, 1766765), (260, 1685222), (280, 1564849), (286, 1532020), (308, 1422590), (310, 1413412), (341, 1284920), (353, 1241240), (364, 1203730), (385, 1138072), (403, 1087240), (434, 1009580), (440, 995813), (455, 962984), (520, 842611), (572, 766010), (616, 711295), (620, 706706), (682, 642460), (706, 620620), (715, 612808), (728, 601865), (770, 569036), (806, 543620), (868, 504790), (910, 481492), (1001, 437720), (1085, 403832), (1144, 383005), (1240, 353353), (1364, 321230), (1412, 310310), (1430, 306404), (1540, 284518), (1612, 271810), (1705, 256984), (1736, 252395), (1765, 248248), (1820, 240746), (2002, 218860), (2015, 217448), (2170, 201916), (2387, 183560), (2471, 177320), (2728, 160615), (2821, 155320), (2824, 155155), (2860, 153202), (3080, 142259), (3224, 135905), (3410, 128492), (3530, 124124), (3640, 120373), (3883, 112840), (4004, 109430), (4030, 108724), (4340, 100958), (4433, 98840), (4589, 95480), (4774, 91780), (4942, 88660), (5005, 87544), (5642, 77660), (5720, 76601), (6820, 64246), (7060, 62062), (7766, 56420), (8008, 54715), (8060, 54362), (8680, 50479), (8866, 49420), (9178, 47740), (9548, 45890), (9884, 44330), (10010, 43772), (10943, 40040), (11284, 38830), (11935, 36712), (12355, 35464), (13640, 32123), (14105, 31064), (14120, 31031), (15532, 28210), (16120, 27181), (17732, 24710), (18356, 23870), (19096, 22945), (19415, 22568), (19768, 22165), (20020, 21886)]