19488040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3407}}^1$

素因数の和:3442

約数の個数: 64

約数和(自身を含む): 51528960

約数和(自身を除く): 32040920

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3407, 5720, 6814, 13628, 17035, 27256, 34070, 37477, 44291, 68140, 74954, 88582, 136280, 149908, 177164, 187385, 221455, 299816, 354328, 374770, 442910, 487201, 749540, 885820, 974402, 1499080, 1771640, 1948804, 2436005, 3897608, 4872010, 9744020, 19488040]

約数ペア:

[(1, 19488040), (2, 9744020), (4, 4872010), (5, 3897608), (8, 2436005), (10, 1948804), (11, 1771640), (13, 1499080), (20, 974402), (22, 885820), (26, 749540), (40, 487201), (44, 442910), (52, 374770), (55, 354328), (65, 299816), (88, 221455), (104, 187385), (110, 177164), (130, 149908), (143, 136280), (220, 88582), (260, 74954), (286, 68140), (440, 44291), (520, 37477), (572, 34070), (715, 27256), (1144, 17035), (1430, 13628), (2860, 6814), (3407, 5720)]