253299480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{1997}}^1$

素因数の和:2169

約数の個数: 128

約数和(自身を含む): 874644480

約数和(自身を除く): 621345000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 151, 168, 210, 280, 302, 420, 453, 604, 755, 840, 906, 1057, 1208, 1510, 1812, 1997, 2114, 2265, 3020, 3171, 3624, 3994, 4228, 4530, 5285, 5991, 6040, 6342, 7988, 8456, 9060, 9985, 10570, 11982, 12684, 13979, 15855, 15976, 18120, 19970, 21140, 23964, 25368, 27958, 29955, 31710, 39940, 41937, 42280, 47928, 55916, 59910, 63420, 69895, 79880, 83874, 111832, 119820, 126840, 139790, 167748, 209685, 239640, 279580, 301547, 335496, 419370, 559160, 603094, 838740, 904641, 1206188, 1507735, 1677480, 1809282, 2110829, 2412376, 3015470, 3618564, 4221658, 4523205, 6030940, 6332487, 7237128, 8443316, 9046410, 10554145, 12061880, 12664974, 16886632, 18092820, 21108290, 25329948, 31662435, 36185640, 42216580, 50659896, 63324870, 84433160, 126649740, 253299480]

約数ペア:

[(1, 253299480), (2, 126649740), (3, 84433160), (4, 63324870), (5, 50659896), (6, 42216580), (7, 36185640), (8, 31662435), (10, 25329948), (12, 21108290), (14, 18092820), (15, 16886632), (20, 12664974), (21, 12061880), (24, 10554145), (28, 9046410), (30, 8443316), (35, 7237128), (40, 6332487), (42, 6030940), (56, 4523205), (60, 4221658), (70, 3618564), (84, 3015470), (105, 2412376), (120, 2110829), (140, 1809282), (151, 1677480), (168, 1507735), (210, 1206188), (280, 904641), (302, 838740), (420, 603094), (453, 559160), (604, 419370), (755, 335496), (840, 301547), (906, 279580), (1057, 239640), (1208, 209685), (1510, 167748), (1812, 139790), (1997, 126840), (2114, 119820), (2265, 111832), (3020, 83874), (3171, 79880), (3624, 69895), (3994, 63420), (4228, 59910), (4530, 55916), (5285, 47928), (5991, 42280), (6040, 41937), (6342, 39940), (7988, 31710), (8456, 29955), (9060, 27958), (9985, 25368), (10570, 23964), (11982, 21140), (12684, 19970), (13979, 18120), (15855, 15976)]