20823270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{499}}^1$

素因数の和:629

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 33608730

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 107, 130, 195, 214, 321, 390, 499, 535, 642, 998, 1070, 1391, 1497, 1605, 2495, 2782, 2994, 3210, 4173, 4990, 6487, 6955, 7485, 8346, 12974, 13910, 14970, 19461, 20865, 32435, 38922, 41730, 53393, 64870, 97305, 106786, 160179, 194610, 266965, 320358, 533930, 694109, 800895, 1388218, 1601790, 2082327, 3470545, 4164654, 6941090, 10411635, 20823270]

約数ペア:

[(1, 20823270), (2, 10411635), (3, 6941090), (5, 4164654), (6, 3470545), (10, 2082327), (13, 1601790), (15, 1388218), (26, 800895), (30, 694109), (39, 533930), (65, 320358), (78, 266965), (107, 194610), (130, 160179), (195, 106786), (214, 97305), (321, 64870), (390, 53393), (499, 41730), (535, 38922), (642, 32435), (998, 20865), (1070, 19461), (1391, 14970), (1497, 13910), (1605, 12974), (2495, 8346), (2782, 7485), (2994, 6955), (3210, 6487), (4173, 4990)]