20245940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7079}}^1$

素因数の和:7112

約数の個数: 48

約数和(自身を含む): 49956480

約数和(自身を除く): 29710540

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 7079, 14158, 28316, 35395, 70790, 77869, 92027, 141580, 155738, 184054, 311476, 368108, 389345, 460135, 778690, 920270, 1012297, 1557380, 1840540, 2024594, 4049188, 5061485, 10122970, 20245940]

約数ペア:

[(1, 20245940), (2, 10122970), (4, 5061485), (5, 4049188), (10, 2024594), (11, 1840540), (13, 1557380), (20, 1012297), (22, 920270), (26, 778690), (44, 460135), (52, 389345), (55, 368108), (65, 311476), (110, 184054), (130, 155738), (143, 141580), (220, 92027), (260, 77869), (286, 70790), (572, 35395), (715, 28316), (1430, 14158), (2860, 7079)]