196987960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{378823}}^1$

素因数の和:378847

約数の個数: 32

約数和(自身を含む): 477318240

約数和(自身を除く): 280330280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 378823, 757646, 1515292, 1894115, 3030584, 3788230, 4924699, 7576460, 9849398, 15152920, 19698796, 24623495, 39397592, 49246990, 98493980, 196987960]

約数ペア:

[(1, 196987960), (2, 98493980), (4, 49246990), (5, 39397592), (8, 24623495), (10, 19698796), (13, 15152920), (20, 9849398), (26, 7576460), (40, 4924699), (52, 3788230), (65, 3030584), (104, 1894115), (130, 1515292), (260, 757646), (520, 378823)]