81366090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{208631}}^1$

素因数の和:208654

約数の個数: 32

約数和(自身を含む): 210301056

約数和(自身を除く): 128934966

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 208631, 417262, 625893, 1043155, 1251786, 2086310, 2712203, 3129465, 5424406, 6258930, 8136609, 13561015, 16273218, 27122030, 40683045, 81366090]

約数ペア:

[(1, 81366090), (2, 40683045), (3, 27122030), (5, 16273218), (6, 13561015), (10, 8136609), (13, 6258930), (15, 5424406), (26, 3129465), (30, 2712203), (39, 2086310), (65, 1251786), (78, 1043155), (130, 625893), (195, 417262), (390, 208631)]