748996820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{261887}}^1$

素因数の和:261920

約数の個数: 48

約数和(自身を含む): 1847881728

約数和(自身を除く): 1098884908

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 261887, 523774, 1047548, 1309435, 2618870, 2880757, 3404531, 5237740, 5761514, 6809062, 11523028, 13618124, 14403785, 17022655, 28807570, 34045310, 37449841, 57615140, 68090620, 74899682, 149799364, 187249205, 374498410, 748996820]

約数ペア:

[(1, 748996820), (2, 374498410), (4, 187249205), (5, 149799364), (10, 74899682), (11, 68090620), (13, 57615140), (20, 37449841), (22, 34045310), (26, 28807570), (44, 17022655), (52, 14403785), (55, 13618124), (65, 11523028), (110, 6809062), (130, 5761514), (143, 5237740), (220, 3404531), (260, 2880757), (286, 2618870), (572, 1309435), (715, 1047548), (1430, 523774), (2860, 261887)]