420909890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{659}}^1\times {\mathrm{2777}}^1$

素因数の和:3466

約数の個数: 32

約数和(自身を含む): 792063360

約数和(自身を除く): 371153470

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 659, 1318, 2777, 3295, 5554, 6590, 13885, 15157, 27770, 30314, 63871, 75785, 127742, 151570, 319355, 638710, 1830043, 3660086, 9150215, 18300430, 42090989, 84181978, 210454945, 420909890]

約数ペア:

[(1, 420909890), (2, 210454945), (5, 84181978), (10, 42090989), (23, 18300430), (46, 9150215), (115, 3660086), (230, 1830043), (659, 638710), (1318, 319355), (2777, 151570), (3295, 127742), (5554, 75785), (6590, 63871), (13885, 30314), (15157, 27770)]