28210002925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{975281}}^1$

素因数の和:975393

約数の個数: 24

約数和(自身を含む): 38094514920

約数和(自身を除く): 9884511995

約数列:

[1, 5, 13, 25, 65, 89, 325, 445, 1157, 2225, 5785, 28925, 975281, 4876405, 12678653, 24382025, 63393265, 86800009, 316966325, 434000045, 1128400117, 2170000225, 5642000585, 28210002925]

約数ペア:

[(1, 28210002925), (5, 5642000585), (13, 2170000225), (25, 1128400117), (65, 434000045), (89, 316966325), (325, 86800009), (445, 63393265), (1157, 24382025), (2225, 12678653), (5785, 4876405), (28925, 975281)]