19259920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12671}}^1$

素因数の和:12703

約数の個数: 40

約数和(自身を含む): 47139840

約数和(自身を除く): 27879920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12671, 25342, 50684, 63355, 101368, 126710, 202736, 240749, 253420, 481498, 506840, 962996, 1013680, 1203745, 1925992, 2407490, 3851984, 4814980, 9629960, 19259920]

約数ペア:

[(1, 19259920), (2, 9629960), (4, 4814980), (5, 3851984), (8, 2407490), (10, 1925992), (16, 1203745), (19, 1013680), (20, 962996), (38, 506840), (40, 481498), (76, 253420), (80, 240749), (95, 202736), (152, 126710), (190, 101368), (304, 63355), (380, 50684), (760, 25342), (1520, 12671)]