77208820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1993}}^1$

素因数の和:2164

約数の個数: 48

約数和(自身を含む): 175870800

約数和(自身を除く): 98661980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 149, 260, 298, 596, 745, 1490, 1937, 1993, 2980, 3874, 3986, 7748, 7972, 9685, 9965, 19370, 19930, 25909, 38740, 39860, 51818, 103636, 129545, 259090, 296957, 518180, 593914, 1187828, 1484785, 2969570, 3860441, 5939140, 7720882, 15441764, 19302205, 38604410, 77208820]

約数ペア:

[(1, 77208820), (2, 38604410), (4, 19302205), (5, 15441764), (10, 7720882), (13, 5939140), (20, 3860441), (26, 2969570), (52, 1484785), (65, 1187828), (130, 593914), (149, 518180), (260, 296957), (298, 259090), (596, 129545), (745, 103636), (1490, 51818), (1937, 39860), (1993, 38740), (2980, 25909), (3874, 19930), (3986, 19370), (7748, 9965), (7972, 9685)]