263455920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4021}}^1$

素因数の和:4060

約数の個数: 240

約数和(自身を含む): 1089221952

約数和(自身を除く): 825766032

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 104, 105, 112, 117, 120, 126, 130, 140, 144, 156, 168, 180, 182, 195, 208, 210, 234, 240, 252, 260, 273, 280, 312, 315, 336, 360, 364, 390, 420, 455, 468, 504, 520, 546, 560, 585, 624, 630, 720, 728, 780, 819, 840, 910, 936, 1008, 1040, 1092, 1170, 1260, 1365, 1456, 1560, 1638, 1680, 1820, 1872, 2184, 2340, 2520, 2730, 3120, 3276, 3640, 4021, 4095, 4368, 4680, 5040, 5460, 6552, 7280, 8042, 8190, 9360, 10920, 12063, 13104, 16084, 16380, 20105, 21840, 24126, 28147, 32168, 32760, 36189, 40210, 48252, 52273, 56294, 60315, 64336, 65520, 72378, 80420, 84441, 96504, 104546, 112588, 120630, 140735, 144756, 156819, 160840, 168882, 180945, 193008, 209092, 225176, 241260, 253323, 261365, 281470, 289512, 313638, 321680, 337764, 361890, 365911, 418184, 422205, 450352, 470457, 482520, 506646, 522730, 562940, 579024, 627276, 675528, 723780, 731822, 784095, 836368, 844410, 940914, 965040, 1013292, 1045460, 1097733, 1125880, 1254552, 1266615, 1351056, 1447560, 1463644, 1568190, 1688820, 1829555, 1881828, 2026584, 2090920, 2195466, 2251760, 2352285, 2509104, 2533230, 2895120, 2927288, 3136380, 3293199, 3377640, 3659110, 3763656, 4053168, 4181840, 4390932, 4704570, 5066460, 5488665, 5854576, 6272760, 6586398, 6755280, 7318220, 7527312, 8781864, 9409140, 10132920, 10977330, 12545520, 13172796, 14636440, 16465995, 17563728, 18818280, 20265840, 21954660, 26345592, 29272880, 32931990, 37636560, 43909320, 52691184, 65863980, 87818640, 131727960, 263455920]

約数ペア:

[(1, 263455920), (2, 131727960), (3, 87818640), (4, 65863980), (5, 52691184), (6, 43909320), (7, 37636560), (8, 32931990), (9, 29272880), (10, 26345592), (12, 21954660), (13, 20265840), (14, 18818280), (15, 17563728), (16, 16465995), (18, 14636440), (20, 13172796), (21, 12545520), (24, 10977330), (26, 10132920), (28, 9409140), (30, 8781864), (35, 7527312), (36, 7318220), (39, 6755280), (40, 6586398), (42, 6272760), (45, 5854576), (48, 5488665), (52, 5066460), (56, 4704570), (60, 4390932), (63, 4181840), (65, 4053168), (70, 3763656), (72, 3659110), (78, 3377640), (80, 3293199), (84, 3136380), (90, 2927288), (91, 2895120), (104, 2533230), (105, 2509104), (112, 2352285), (117, 2251760), (120, 2195466), (126, 2090920), (130, 2026584), (140, 1881828), (144, 1829555), (156, 1688820), (168, 1568190), (180, 1463644), (182, 1447560), (195, 1351056), (208, 1266615), (210, 1254552), (234, 1125880), (240, 1097733), (252, 1045460), (260, 1013292), (273, 965040), (280, 940914), (312, 844410), (315, 836368), (336, 784095), (360, 731822), (364, 723780), (390, 675528), (420, 627276), (455, 579024), (468, 562940), (504, 522730), (520, 506646), (546, 482520), (560, 470457), (585, 450352), (624, 422205), (630, 418184), (720, 365911), (728, 361890), (780, 337764), (819, 321680), (840, 313638), (910, 289512), (936, 281470), (1008, 261365), (1040, 253323), (1092, 241260), (1170, 225176), (1260, 209092), (1365, 193008), (1456, 180945), (1560, 168882), (1638, 160840), (1680, 156819), (1820, 144756), (1872, 140735), (2184, 120630), (2340, 112588), (2520, 104546), (2730, 96504), (3120, 84441), (3276, 80420), (3640, 72378), (4021, 65520), (4095, 64336), (4368, 60315), (4680, 56294), (5040, 52273), (5460, 48252), (6552, 40210), (7280, 36189), (8042, 32760), (8190, 32168), (9360, 28147), (10920, 24126), (12063, 21840), (13104, 20105), (16084, 16380)]