20657884904

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1213}}^1\times {\mathrm{1597}}^1$

素因数の和:2890

約数の個数: 64

約数和(自身を含む): 40972208640

約数和(自身を除く): 20314323736

約数列:

[1, 2, 4, 8, 31, 43, 62, 86, 124, 172, 248, 344, 1213, 1333, 1597, 2426, 2666, 3194, 4852, 5332, 6388, 9704, 10664, 12776, 37603, 49507, 52159, 68671, 75206, 99014, 104318, 137342, 150412, 198028, 208636, 274684, 300824, 396056, 417272, 549368, 1616929, 1937161, 2128801, 3233858, 3874322, 4257602, 6467716, 7748644, 8515204, 12935432, 15497288, 17030408, 60051991, 83297923, 120103982, 166595846, 240207964, 333191692, 480415928, 666383384, 2582235613, 5164471226, 10328942452, 20657884904]

約数ペア:

[(1, 20657884904), (2, 10328942452), (4, 5164471226), (8, 2582235613), (31, 666383384), (43, 480415928), (62, 333191692), (86, 240207964), (124, 166595846), (172, 120103982), (248, 83297923), (344, 60051991), (1213, 17030408), (1333, 15497288), (1597, 12935432), (2426, 8515204), (2666, 7748644), (3194, 6467716), (4852, 4257602), (5332, 3874322), (6388, 3233858), (9704, 2128801), (10664, 1937161), (12776, 1616929), (37603, 549368), (49507, 417272), (52159, 396056), (68671, 300824), (75206, 274684), (99014, 208636), (104318, 198028), (137342, 150412)]