30972890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2677}}^1$

素因数の和:2786

約数の個数: 32

約数和(自身を含む): 60737040

約数和(自身を除く): 29764150

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 445, 890, 1157, 2314, 2677, 5354, 5785, 11570, 13385, 26770, 34801, 69602, 174005, 238253, 348010, 476506, 1191265, 2382530, 3097289, 6194578, 15486445, 30972890]

約数ペア:

[(1, 30972890), (2, 15486445), (5, 6194578), (10, 3097289), (13, 2382530), (26, 1191265), (65, 476506), (89, 348010), (130, 238253), (178, 174005), (445, 69602), (890, 34801), (1157, 26770), (2314, 13385), (2677, 11570), (5354, 5785)]