1225308840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{691}}^1\times {\mathrm{2111}}^1$

素因数の和:2823

約数の個数: 128

約数和(自身を含む): 4209131520

約数和(自身を除く): 2983822680

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, 168, 210, 280, 420, 691, 840, 1382, 2073, 2111, 2764, 3455, 4146, 4222, 4837, 5528, 6333, 6910, 8292, 8444, 9674, 10365, 10555, 12666, 13820, 14511, 14777, 16584, 16888, 19348, 20730, 21110, 24185, 25332, 27640, 29022, 29554, 31665, 38696, 41460, 42220, 44331, 48370, 50664, 58044, 59108, 63330, 72555, 73885, 82920, 84440, 88662, 96740, 116088, 118216, 126660, 145110, 147770, 177324, 193480, 221655, 253320, 290220, 295540, 354648, 443310, 580440, 591080, 886620, 1458701, 1773240, 2917402, 4376103, 5834804, 7293505, 8752206, 10210907, 11669608, 14587010, 17504412, 20421814, 21880515, 29174020, 30632721, 35008824, 40843628, 43761030, 51054535, 58348040, 61265442, 81687256, 87522060, 102109070, 122530884, 153163605, 175044120, 204218140, 245061768, 306327210, 408436280, 612654420, 1225308840]

約数ペア:

[(1, 1225308840), (2, 612654420), (3, 408436280), (4, 306327210), (5, 245061768), (6, 204218140), (7, 175044120), (8, 153163605), (10, 122530884), (12, 102109070), (14, 87522060), (15, 81687256), (20, 61265442), (21, 58348040), (24, 51054535), (28, 43761030), (30, 40843628), (35, 35008824), (40, 30632721), (42, 29174020), (56, 21880515), (60, 20421814), (70, 17504412), (84, 14587010), (105, 11669608), (120, 10210907), (140, 8752206), (168, 7293505), (210, 5834804), (280, 4376103), (420, 2917402), (691, 1773240), (840, 1458701), (1382, 886620), (2073, 591080), (2111, 580440), (2764, 443310), (3455, 354648), (4146, 295540), (4222, 290220), (4837, 253320), (5528, 221655), (6333, 193480), (6910, 177324), (8292, 147770), (8444, 145110), (9674, 126660), (10365, 118216), (10555, 116088), (12666, 96740), (13820, 88662), (14511, 84440), (14777, 82920), (16584, 73885), (16888, 72555), (19348, 63330), (20730, 59108), (21110, 58044), (24185, 50664), (25332, 48370), (27640, 44331), (29022, 42220), (29554, 41460), (31665, 38696)]