389474080

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{149}}^1$

素因数の和:243

約数の個数: 144

約数和(自身を含む): 1013455800

約数和(自身を除く): 623981720

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 68, 80, 85, 124, 136, 149, 155, 160, 170, 248, 272, 298, 310, 340, 496, 527, 544, 596, 620, 680, 745, 961, 992, 1054, 1192, 1240, 1360, 1490, 1922, 2108, 2384, 2480, 2533, 2635, 2720, 2980, 3844, 4216, 4619, 4768, 4805, 4960, 5066, 5270, 5960, 7688, 8432, 9238, 9610, 10132, 10540, 11920, 12665, 15376, 16337, 16864, 18476, 19220, 20264, 21080, 23095, 23840, 25330, 30752, 32674, 36952, 38440, 40528, 42160, 46190, 50660, 65348, 73904, 76880, 78523, 81056, 81685, 84320, 92380, 101320, 130696, 143189, 147808, 153760, 157046, 163370, 184760, 202640, 261392, 286378, 314092, 326740, 369520, 392615, 405280, 522784, 572756, 628184, 653480, 715945, 739040, 785230, 1145512, 1256368, 1306960, 1431890, 1570460, 2291024, 2434213, 2512736, 2613920, 2863780, 3140920, 4582048, 4868426, 5727560, 6281840, 9736852, 11455120, 12171065, 12563680, 19473704, 22910240, 24342130, 38947408, 48684260, 77894816, 97368520, 194737040, 389474080]

約数ペア:

[(1, 389474080), (2, 194737040), (4, 97368520), (5, 77894816), (8, 48684260), (10, 38947408), (16, 24342130), (17, 22910240), (20, 19473704), (31, 12563680), (32, 12171065), (34, 11455120), (40, 9736852), (62, 6281840), (68, 5727560), (80, 4868426), (85, 4582048), (124, 3140920), (136, 2863780), (149, 2613920), (155, 2512736), (160, 2434213), (170, 2291024), (248, 1570460), (272, 1431890), (298, 1306960), (310, 1256368), (340, 1145512), (496, 785230), (527, 739040), (544, 715945), (596, 653480), (620, 628184), (680, 572756), (745, 522784), (961, 405280), (992, 392615), (1054, 369520), (1192, 326740), (1240, 314092), (1360, 286378), (1490, 261392), (1922, 202640), (2108, 184760), (2384, 163370), (2480, 157046), (2533, 153760), (2635, 147808), (2720, 143189), (2980, 130696), (3844, 101320), (4216, 92380), (4619, 84320), (4768, 81685), (4805, 81056), (4960, 78523), (5066, 76880), (5270, 73904), (5960, 65348), (7688, 50660), (8432, 46190), (9238, 42160), (9610, 40528), (10132, 38440), (10540, 36952), (11920, 32674), (12665, 30752), (15376, 25330), (16337, 23840), (16864, 23095), (18476, 21080), (19220, 20264)]