204510410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{1637}}^1$

素因数の和:1719

約数の個数: 48

約数和(自身を含む): 409886568

約数和(自身を除く): 205376158

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 961, 1637, 1922, 2015, 3274, 4030, 4805, 8185, 9610, 12493, 16370, 21281, 24986, 42562, 50747, 62465, 101494, 106405, 124930, 212810, 253735, 507470, 659711, 1319422, 1573157, 3146314, 3298555, 6597110, 7865785, 15731570, 20451041, 40902082, 102255205, 204510410]

約数ペア:

[(1, 204510410), (2, 102255205), (5, 40902082), (10, 20451041), (13, 15731570), (26, 7865785), (31, 6597110), (62, 3298555), (65, 3146314), (130, 1573157), (155, 1319422), (310, 659711), (403, 507470), (806, 253735), (961, 212810), (1637, 124930), (1922, 106405), (2015, 101494), (3274, 62465), (4030, 50747), (4805, 42562), (8185, 24986), (9610, 21281), (12493, 16370)]