655126460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:403

約数の個数: 96

約数和(自身を含む): 1486464000

約数和(自身を除く): 831337540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 139, 157, 158, 190, 278, 314, 316, 380, 395, 556, 628, 695, 785, 790, 1390, 1501, 1570, 1580, 2641, 2780, 2983, 3002, 3140, 5282, 5966, 6004, 7505, 10564, 10981, 11932, 12403, 13205, 14915, 15010, 21823, 21962, 24806, 26410, 29830, 30020, 43646, 43924, 49612, 52820, 54905, 59660, 62015, 87292, 109115, 109810, 124030, 208639, 218230, 219620, 235657, 248060, 414637, 417278, 436460, 471314, 829274, 834556, 942628, 1043195, 1178285, 1658548, 1724017, 2073185, 2086390, 2356570, 3448034, 4146370, 4172780, 4713140, 6896068, 8292740, 8620085, 17240170, 32756323, 34480340, 65512646, 131025292, 163781615, 327563230, 655126460]

約数ペア:

[(1, 655126460), (2, 327563230), (4, 163781615), (5, 131025292), (10, 65512646), (19, 34480340), (20, 32756323), (38, 17240170), (76, 8620085), (79, 8292740), (95, 6896068), (139, 4713140), (157, 4172780), (158, 4146370), (190, 3448034), (278, 2356570), (314, 2086390), (316, 2073185), (380, 1724017), (395, 1658548), (556, 1178285), (628, 1043195), (695, 942628), (785, 834556), (790, 829274), (1390, 471314), (1501, 436460), (1570, 417278), (1580, 414637), (2641, 248060), (2780, 235657), (2983, 219620), (3002, 218230), (3140, 208639), (5282, 124030), (5966, 109810), (6004, 109115), (7505, 87292), (10564, 62015), (10981, 59660), (11932, 54905), (12403, 52820), (13205, 49612), (14915, 43924), (15010, 43646), (21823, 30020), (21962, 29830), (24806, 26410)]