19591280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12889}}^1$

素因数の和:12921

約数の個数: 40

約数和(自身を含む): 47950800

約数和(自身を除く): 28359520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12889, 25778, 51556, 64445, 103112, 128890, 206224, 244891, 257780, 489782, 515560, 979564, 1031120, 1224455, 1959128, 2448910, 3918256, 4897820, 9795640, 19591280]

約数ペア:

[(1, 19591280), (2, 9795640), (4, 4897820), (5, 3918256), (8, 2448910), (10, 1959128), (16, 1224455), (19, 1031120), (20, 979564), (38, 515560), (40, 489782), (76, 257780), (80, 244891), (95, 206224), (152, 128890), (190, 103112), (304, 64445), (380, 51556), (760, 25778), (1520, 12889)]