40297790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{1297}}^1$

素因数の和:1556

約数の個数: 32

約数和(自身を含む): 78503040

約数和(自身を除く): 38205250

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 239, 478, 1195, 1297, 2390, 2594, 3107, 6214, 6485, 12970, 15535, 16861, 31070, 33722, 84305, 168610, 309983, 619966, 1549915, 3099830, 4029779, 8059558, 20148895, 40297790]

約数ペア:

[(1, 40297790), (2, 20148895), (5, 8059558), (10, 4029779), (13, 3099830), (26, 1549915), (65, 619966), (130, 309983), (239, 168610), (478, 84305), (1195, 33722), (1297, 31070), (2390, 16861), (2594, 15535), (3107, 12970), (6214, 6485)]