145890040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{59791}}^1$

素因数の和:59863

約数の個数: 32

約数和(自身を含む): 333639360

約数和(自身を除く): 187749320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 59791, 119582, 239164, 298955, 478328, 597910, 1195820, 2391640, 3647251, 7294502, 14589004, 18236255, 29178008, 36472510, 72945020, 145890040]

約数ペア:

[(1, 145890040), (2, 72945020), (4, 36472510), (5, 29178008), (8, 18236255), (10, 14589004), (20, 7294502), (40, 3647251), (61, 2391640), (122, 1195820), (244, 597910), (305, 478328), (488, 298955), (610, 239164), (1220, 119582), (2440, 59791)]