918702980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{113983}}^1$

素因数の和:114036

約数の個数: 48

約数和(自身を含む): 2144722944

約数和(自身を除く): 1226019964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 113983, 227966, 455932, 569915, 1139830, 1481779, 2279660, 2963558, 3533473, 5927116, 7066946, 7408895, 14133892, 14817790, 17667365, 29635580, 35334730, 45935149, 70669460, 91870298, 183740596, 229675745, 459351490, 918702980]

約数ペア:

[(1, 918702980), (2, 459351490), (4, 229675745), (5, 183740596), (10, 91870298), (13, 70669460), (20, 45935149), (26, 35334730), (31, 29635580), (52, 17667365), (62, 14817790), (65, 14133892), (124, 7408895), (130, 7066946), (155, 5927116), (260, 3533473), (310, 2963558), (403, 2279660), (620, 1481779), (806, 1139830), (1612, 569915), (2015, 455932), (4030, 227966), (8060, 113983)]