1902161780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1129}}^1\times {\mathrm{1381}}^1$

素因数の和:2580

約数の個数: 48

約数和(自身を含む): 4066562640

約数和(自身を除く): 2164400860

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1129, 1220, 1381, 2258, 2762, 4516, 5524, 5645, 6905, 11290, 13810, 22580, 27620, 68869, 84241, 137738, 168482, 275476, 336964, 344345, 421205, 688690, 842410, 1377380, 1559149, 1684820, 3118298, 6236596, 7795745, 15591490, 31182980, 95108089, 190216178, 380432356, 475540445, 951080890, 1902161780]

約数ペア:

[(1, 1902161780), (2, 951080890), (4, 475540445), (5, 380432356), (10, 190216178), (20, 95108089), (61, 31182980), (122, 15591490), (244, 7795745), (305, 6236596), (610, 3118298), (1129, 1684820), (1220, 1559149), (1381, 1377380), (2258, 842410), (2762, 688690), (4516, 421205), (5524, 344345), (5645, 336964), (6905, 275476), (11290, 168482), (13810, 137738), (22580, 84241), (27620, 68869)]