249944520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1997}}^1$

素因数の和:2167

約数の個数: 128

約数和(自身を含む): 863136000

約数和(自身を除く): 613191480

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, 149, 168, 210, 280, 298, 420, 447, 596, 745, 840, 894, 1043, 1192, 1490, 1788, 1997, 2086, 2235, 2980, 3129, 3576, 3994, 4172, 4470, 5215, 5960, 5991, 6258, 7988, 8344, 8940, 9985, 10430, 11982, 12516, 13979, 15645, 15976, 17880, 19970, 20860, 23964, 25032, 27958, 29955, 31290, 39940, 41720, 41937, 47928, 55916, 59910, 62580, 69895, 79880, 83874, 111832, 119820, 125160, 139790, 167748, 209685, 239640, 279580, 297553, 335496, 419370, 559160, 595106, 838740, 892659, 1190212, 1487765, 1677480, 1785318, 2082871, 2380424, 2975530, 3570636, 4165742, 4463295, 5951060, 6248613, 7141272, 8331484, 8926590, 10414355, 11902120, 12497226, 16662968, 17853180, 20828710, 24994452, 31243065, 35706360, 41657420, 49988904, 62486130, 83314840, 124972260, 249944520]

約数ペア:

[(1, 249944520), (2, 124972260), (3, 83314840), (4, 62486130), (5, 49988904), (6, 41657420), (7, 35706360), (8, 31243065), (10, 24994452), (12, 20828710), (14, 17853180), (15, 16662968), (20, 12497226), (21, 11902120), (24, 10414355), (28, 8926590), (30, 8331484), (35, 7141272), (40, 6248613), (42, 5951060), (56, 4463295), (60, 4165742), (70, 3570636), (84, 2975530), (105, 2380424), (120, 2082871), (140, 1785318), (149, 1677480), (168, 1487765), (210, 1190212), (280, 892659), (298, 838740), (420, 595106), (447, 559160), (596, 419370), (745, 335496), (840, 297553), (894, 279580), (1043, 239640), (1192, 209685), (1490, 167748), (1788, 139790), (1997, 125160), (2086, 119820), (2235, 111832), (2980, 83874), (3129, 79880), (3576, 69895), (3994, 62580), (4172, 59910), (4470, 55916), (5215, 47928), (5960, 41937), (5991, 41720), (6258, 39940), (7988, 31290), (8344, 29955), (8940, 27958), (9985, 25032), (10430, 23964), (11982, 20860), (12516, 19970), (13979, 17880), (15645, 15976)]