28658890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2477}}^1$

素因数の和:2586

約数の個数: 32

約数和(自身を含む): 56201040

約数和(自身を除く): 27542150

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 445, 890, 1157, 2314, 2477, 4954, 5785, 11570, 12385, 24770, 32201, 64402, 161005, 220453, 322010, 440906, 1102265, 2204530, 2865889, 5731778, 14329445, 28658890]

約数ペア:

[(1, 28658890), (2, 14329445), (5, 5731778), (10, 2865889), (13, 2204530), (26, 1102265), (65, 440906), (89, 322010), (130, 220453), (178, 161005), (445, 64402), (890, 32201), (1157, 24770), (2314, 12385), (2477, 11570), (4954, 5785)]