400449780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{491}}^1$

素因数の和:726

約数の個数: 144

約数和(自身を含む): 1276539264

約数和(自身を除く): 876089484

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 197, 207, 230, 276, 345, 394, 414, 460, 491, 591, 690, 788, 828, 982, 985, 1035, 1182, 1380, 1473, 1773, 1964, 1970, 2070, 2364, 2455, 2946, 2955, 3546, 3940, 4140, 4419, 4531, 4910, 5892, 5910, 7092, 7365, 8838, 8865, 9062, 9820, 11293, 11820, 13593, 14730, 17676, 17730, 18124, 22095, 22586, 22655, 27186, 29460, 33879, 35460, 40779, 44190, 45172, 45310, 54372, 56465, 67758, 67965, 81558, 88380, 90620, 96727, 101637, 112930, 135516, 135930, 163116, 169395, 193454, 203274, 203895, 225860, 271860, 290181, 338790, 386908, 406548, 407790, 483635, 508185, 580362, 677580, 815580, 870543, 967270, 1016370, 1160724, 1450905, 1741086, 1934540, 2032740, 2224721, 2901810, 3482172, 4352715, 4449442, 5803620, 6674163, 8705430, 8898884, 11123605, 13348326, 17410860, 20022489, 22247210, 26696652, 33370815, 40044978, 44494420, 66741630, 80089956, 100112445, 133483260, 200224890, 400449780]

約数ペア:

[(1, 400449780), (2, 200224890), (3, 133483260), (4, 100112445), (5, 80089956), (6, 66741630), (9, 44494420), (10, 40044978), (12, 33370815), (15, 26696652), (18, 22247210), (20, 20022489), (23, 17410860), (30, 13348326), (36, 11123605), (45, 8898884), (46, 8705430), (60, 6674163), (69, 5803620), (90, 4449442), (92, 4352715), (115, 3482172), (138, 2901810), (180, 2224721), (197, 2032740), (207, 1934540), (230, 1741086), (276, 1450905), (345, 1160724), (394, 1016370), (414, 967270), (460, 870543), (491, 815580), (591, 677580), (690, 580362), (788, 508185), (828, 483635), (982, 407790), (985, 406548), (1035, 386908), (1182, 338790), (1380, 290181), (1473, 271860), (1773, 225860), (1964, 203895), (1970, 203274), (2070, 193454), (2364, 169395), (2455, 163116), (2946, 135930), (2955, 135516), (3546, 112930), (3940, 101637), (4140, 96727), (4419, 90620), (4531, 88380), (4910, 81558), (5892, 67965), (5910, 67758), (7092, 56465), (7365, 54372), (8838, 45310), (8865, 45172), (9062, 44190), (9820, 40779), (11293, 35460), (11820, 33879), (13593, 29460), (14730, 27186), (17676, 22655), (17730, 22586), (18124, 22095)]