181880920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{449}}^1$

素因数の和:533

約数の個数: 128

約数和(自身を含む): 476280000

約数和(自身を除く): 294399080

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 41, 52, 65, 76, 82, 95, 104, 130, 152, 164, 190, 205, 247, 260, 328, 380, 410, 449, 494, 520, 533, 760, 779, 820, 898, 988, 1066, 1235, 1558, 1640, 1796, 1976, 2132, 2245, 2470, 2665, 3116, 3592, 3895, 4264, 4490, 4940, 5330, 5837, 6232, 7790, 8531, 8980, 9880, 10127, 10660, 11674, 15580, 17062, 17960, 18409, 20254, 21320, 23348, 29185, 31160, 34124, 36818, 40508, 42655, 46696, 50635, 58370, 68248, 73636, 81016, 85310, 92045, 101270, 110903, 116740, 147272, 170620, 184090, 202540, 221806, 233480, 239317, 341240, 349771, 368180, 405080, 443612, 478634, 554515, 699542, 736360, 887224, 957268, 1109030, 1196585, 1399084, 1748855, 1914536, 2218060, 2393170, 2798168, 3497710, 4436120, 4547023, 4786340, 6995420, 9094046, 9572680, 13990840, 18188092, 22735115, 36376184, 45470230, 90940460, 181880920]

約数ペア:

[(1, 181880920), (2, 90940460), (4, 45470230), (5, 36376184), (8, 22735115), (10, 18188092), (13, 13990840), (19, 9572680), (20, 9094046), (26, 6995420), (38, 4786340), (40, 4547023), (41, 4436120), (52, 3497710), (65, 2798168), (76, 2393170), (82, 2218060), (95, 1914536), (104, 1748855), (130, 1399084), (152, 1196585), (164, 1109030), (190, 957268), (205, 887224), (247, 736360), (260, 699542), (328, 554515), (380, 478634), (410, 443612), (449, 405080), (494, 368180), (520, 349771), (533, 341240), (760, 239317), (779, 233480), (820, 221806), (898, 202540), (988, 184090), (1066, 170620), (1235, 147272), (1558, 116740), (1640, 110903), (1796, 101270), (1976, 92045), (2132, 85310), (2245, 81016), (2470, 73636), (2665, 68248), (3116, 58370), (3592, 50635), (3895, 46696), (4264, 42655), (4490, 40508), (4940, 36818), (5330, 34124), (5837, 31160), (6232, 29185), (7790, 23348), (8531, 21320), (8980, 20254), (9880, 18409), (10127, 17960), (10660, 17062), (11674, 15580)]