409526650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{4013}}^1$

素因数の和:4195

約数の個数: 48

約数和(自身を含む): 825744024

約数和(自身を除く): 416217374

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 157, 314, 325, 650, 785, 1570, 2041, 3925, 4013, 4082, 7850, 8026, 10205, 20065, 20410, 40130, 51025, 52169, 100325, 102050, 104338, 200650, 260845, 521690, 630041, 1260082, 1304225, 2608450, 3150205, 6300410, 8190533, 15751025, 16381066, 31502050, 40952665, 81905330, 204763325, 409526650]

約数ペア:

[(1, 409526650), (2, 204763325), (5, 81905330), (10, 40952665), (13, 31502050), (25, 16381066), (26, 15751025), (50, 8190533), (65, 6300410), (130, 3150205), (157, 2608450), (314, 1304225), (325, 1260082), (650, 630041), (785, 521690), (1570, 260845), (2041, 200650), (3925, 104338), (4013, 102050), (4082, 100325), (7850, 52169), (8026, 51025), (10205, 40130), (20065, 20410)]