641287920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29363}}^1$

素因数の和:29399

約数の個数: 160

約数和(自身を含む): 2446843392

約数和(自身を除く): 1805555472

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 104, 105, 112, 120, 130, 140, 156, 168, 182, 195, 208, 210, 240, 260, 273, 280, 312, 336, 364, 390, 420, 455, 520, 546, 560, 624, 728, 780, 840, 910, 1040, 1092, 1365, 1456, 1560, 1680, 1820, 2184, 2730, 3120, 3640, 4368, 5460, 7280, 10920, 21840, 29363, 58726, 88089, 117452, 146815, 176178, 205541, 234904, 293630, 352356, 381719, 411082, 440445, 469808, 587260, 616623, 704712, 763438, 822164, 880890, 1027705, 1145157, 1174520, 1233246, 1409424, 1526876, 1644328, 1761780, 1908595, 2055410, 2290314, 2349040, 2466492, 2672033, 3053752, 3083115, 3288656, 3523560, 3817190, 4110820, 4580628, 4932984, 5344066, 5725785, 6107504, 6166230, 7047120, 7634380, 8016099, 8221640, 9161256, 9865968, 10688132, 11451570, 12332460, 13360165, 15268760, 16032198, 16443280, 18322512, 21376264, 22903140, 24664920, 26720330, 30537520, 32064396, 40080495, 42752528, 45806280, 49329840, 53440660, 64128792, 80160990, 91612560, 106881320, 128257584, 160321980, 213762640, 320643960, 641287920]

約数ペア:

[(1, 641287920), (2, 320643960), (3, 213762640), (4, 160321980), (5, 128257584), (6, 106881320), (7, 91612560), (8, 80160990), (10, 64128792), (12, 53440660), (13, 49329840), (14, 45806280), (15, 42752528), (16, 40080495), (20, 32064396), (21, 30537520), (24, 26720330), (26, 24664920), (28, 22903140), (30, 21376264), (35, 18322512), (39, 16443280), (40, 16032198), (42, 15268760), (48, 13360165), (52, 12332460), (56, 11451570), (60, 10688132), (65, 9865968), (70, 9161256), (78, 8221640), (80, 8016099), (84, 7634380), (91, 7047120), (104, 6166230), (105, 6107504), (112, 5725785), (120, 5344066), (130, 4932984), (140, 4580628), (156, 4110820), (168, 3817190), (182, 3523560), (195, 3288656), (208, 3083115), (210, 3053752), (240, 2672033), (260, 2466492), (273, 2349040), (280, 2290314), (312, 2055410), (336, 1908595), (364, 1761780), (390, 1644328), (420, 1526876), (455, 1409424), (520, 1233246), (546, 1174520), (560, 1145157), (624, 1027705), (728, 880890), (780, 822164), (840, 763438), (910, 704712), (1040, 616623), (1092, 587260), (1365, 469808), (1456, 440445), (1560, 411082), (1680, 381719), (1820, 352356), (2184, 293630), (2730, 234904), (3120, 205541), (3640, 176178), (4368, 146815), (5460, 117452), (7280, 88089), (10920, 58726), (21840, 29363)]