15187780

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 33122880

約数和(自身を除く): 17935100

約数列:

[1, 2, 4, 5, 10, 20, 59, 61, 118, 122, 211, 236, 244, 295, 305, 422, 590, 610, 844, 1055, 1180, 1220, 2110, 3599, 4220, 7198, 12449, 12871, 14396, 17995, 24898, 25742, 35990, 49796, 51484, 62245, 64355, 71980, 124490, 128710, 248980, 257420, 759389, 1518778, 3037556, 3796945, 7593890, 15187780]

約数ペア:

[(1, 15187780), (2, 7593890), (4, 3796945), (5, 3037556), (10, 1518778), (20, 759389), (59, 257420), (61, 248980), (118, 128710), (122, 124490), (211, 71980), (236, 64355), (244, 62245), (295, 51484), (305, 49796), (422, 35990), (590, 25742), (610, 24898), (844, 17995), (1055, 14396), (1180, 12871), (1220, 12449), (2110, 7198), (3599, 4220)]