653881620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{1571}}^1$

素因数の和:2581

約数の個数: 96

約数和(自身を含む): 2095865856

約数和(自身を除く): 1441984236

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 991, 1571, 1982, 2973, 3142, 3964, 4713, 4955, 5946, 6284, 6937, 7855, 9426, 9910, 10997, 11892, 13874, 14865, 15710, 18852, 19820, 20811, 21994, 23565, 27748, 29730, 31420, 32991, 34685, 41622, 43988, 47130, 54985, 59460, 65982, 69370, 83244, 94260, 104055, 109970, 131964, 138740, 164955, 208110, 219940, 329910, 416220, 659820, 1556861, 3113722, 4670583, 6227444, 7784305, 9341166, 10898027, 15568610, 18682332, 21796054, 23352915, 31137220, 32694081, 43592108, 46705830, 54490135, 65388162, 93411660, 108980270, 130776324, 163470405, 217960540, 326940810, 653881620]

約数ペア:

[(1, 653881620), (2, 326940810), (3, 217960540), (4, 163470405), (5, 130776324), (6, 108980270), (7, 93411660), (10, 65388162), (12, 54490135), (14, 46705830), (15, 43592108), (20, 32694081), (21, 31137220), (28, 23352915), (30, 21796054), (35, 18682332), (42, 15568610), (60, 10898027), (70, 9341166), (84, 7784305), (105, 6227444), (140, 4670583), (210, 3113722), (420, 1556861), (991, 659820), (1571, 416220), (1982, 329910), (2973, 219940), (3142, 208110), (3964, 164955), (4713, 138740), (4955, 131964), (5946, 109970), (6284, 104055), (6937, 94260), (7855, 83244), (9426, 69370), (9910, 65982), (10997, 59460), (11892, 54985), (13874, 47130), (14865, 43988), (15710, 41622), (18852, 34685), (19820, 32991), (20811, 31420), (21994, 29730), (23565, 27748)]