261230640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1867}}^1$

素因数の和:1947

約数の個数: 160

約数和(自身を含む): 900585216

約数和(自身を除く): 639354576

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 53, 55, 60, 66, 80, 88, 106, 110, 120, 132, 159, 165, 176, 212, 220, 240, 264, 265, 318, 330, 424, 440, 528, 530, 583, 636, 660, 795, 848, 880, 1060, 1166, 1272, 1320, 1590, 1749, 1867, 2120, 2332, 2544, 2640, 2915, 3180, 3498, 3734, 4240, 4664, 5601, 5830, 6360, 6996, 7468, 8745, 9328, 9335, 11202, 11660, 12720, 13992, 14936, 17490, 18670, 20537, 22404, 23320, 27984, 28005, 29872, 34980, 37340, 41074, 44808, 46640, 56010, 61611, 69960, 74680, 82148, 89616, 98951, 102685, 112020, 123222, 139920, 149360, 164296, 197902, 205370, 224040, 246444, 296853, 308055, 328592, 395804, 410740, 448080, 492888, 494755, 593706, 616110, 791608, 821480, 985776, 989510, 1088461, 1187412, 1232220, 1484265, 1583216, 1642960, 1979020, 2176922, 2374824, 2464440, 2968530, 3265383, 3958040, 4353844, 4749648, 4928880, 5442305, 5937060, 6530766, 7916080, 8707688, 10884610, 11874120, 13061532, 16326915, 17415376, 21769220, 23748240, 26123064, 32653830, 43538440, 52246128, 65307660, 87076880, 130615320, 261230640]

約数ペア:

[(1, 261230640), (2, 130615320), (3, 87076880), (4, 65307660), (5, 52246128), (6, 43538440), (8, 32653830), (10, 26123064), (11, 23748240), (12, 21769220), (15, 17415376), (16, 16326915), (20, 13061532), (22, 11874120), (24, 10884610), (30, 8707688), (33, 7916080), (40, 6530766), (44, 5937060), (48, 5442305), (53, 4928880), (55, 4749648), (60, 4353844), (66, 3958040), (80, 3265383), (88, 2968530), (106, 2464440), (110, 2374824), (120, 2176922), (132, 1979020), (159, 1642960), (165, 1583216), (176, 1484265), (212, 1232220), (220, 1187412), (240, 1088461), (264, 989510), (265, 985776), (318, 821480), (330, 791608), (424, 616110), (440, 593706), (528, 494755), (530, 492888), (583, 448080), (636, 410740), (660, 395804), (795, 328592), (848, 308055), (880, 296853), (1060, 246444), (1166, 224040), (1272, 205370), (1320, 197902), (1590, 164296), (1749, 149360), (1867, 139920), (2120, 123222), (2332, 112020), (2544, 102685), (2640, 98951), (2915, 89616), (3180, 82148), (3498, 74680), (3734, 69960), (4240, 61611), (4664, 56010), (5601, 46640), (5830, 44808), (6360, 41074), (6996, 37340), (7468, 34980), (8745, 29872), (9328, 28005), (9335, 27984), (11202, 23320), (11660, 22404), (12720, 20537), (13992, 18670), (14936, 17490)]