31009940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2909}}^1$

素因数の和:2972

約数の個数: 48

約数和(自身を含む): 71865360

約数和(自身を除く): 40855420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 2132, 2665, 2909, 5330, 5818, 10660, 11636, 14545, 29090, 37817, 58180, 75634, 119269, 151268, 189085, 238538, 378170, 477076, 596345, 756340, 1192690, 1550497, 2385380, 3100994, 6201988, 7752485, 15504970, 31009940]

約数ペア:

[(1, 31009940), (2, 15504970), (4, 7752485), (5, 6201988), (10, 3100994), (13, 2385380), (20, 1550497), (26, 1192690), (41, 756340), (52, 596345), (65, 477076), (82, 378170), (130, 238538), (164, 189085), (205, 151268), (260, 119269), (410, 75634), (533, 58180), (820, 37817), (1066, 29090), (2132, 14545), (2665, 11636), (2909, 10660), (5330, 5818)]