20482900

素因数分解:

$2^2\times 5^2\times {\mathrm{257}}^1\times {\mathrm{797}}^1$

素因数の和:1068

約数の個数: 36

約数和(自身を含む): 44676828

約数和(自身を除く): 24193928

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 257, 514, 797, 1028, 1285, 1594, 2570, 3188, 3985, 5140, 6425, 7970, 12850, 15940, 19925, 25700, 39850, 79700, 204829, 409658, 819316, 1024145, 2048290, 4096580, 5120725, 10241450, 20482900]

約数ペア:

[(1, 20482900), (2, 10241450), (4, 5120725), (5, 4096580), (10, 2048290), (20, 1024145), (25, 819316), (50, 409658), (100, 204829), (257, 79700), (514, 39850), (797, 25700), (1028, 19925), (1285, 15940), (1594, 12850), (2570, 7970), (3188, 6425), (3985, 5140)]