20909839580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{927677}}^1$

素因数の和:927723

約数の個数: 72

約数和(自身を含む): 53300667168

約数和(自身を除く): 32390827588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1610, 2254, 3220, 4508, 5635, 11270, 22540, 927677, 1855354, 3710708, 4638385, 6493739, 9276770, 12987478, 18553540, 21336571, 25974956, 32468695, 42673142, 45456173, 64937390, 85346284, 90912346, 106682855, 129874780, 149355997, 181824692, 213365710, 227280865, 298711994, 426731420, 454561730, 597423988, 746779985, 909123460, 1045491979, 1493559970, 2090983958, 2987119940, 4181967916, 5227459895, 10454919790, 20909839580]

約数ペア:

[(1, 20909839580), (2, 10454919790), (4, 5227459895), (5, 4181967916), (7, 2987119940), (10, 2090983958), (14, 1493559970), (20, 1045491979), (23, 909123460), (28, 746779985), (35, 597423988), (46, 454561730), (49, 426731420), (70, 298711994), (92, 227280865), (98, 213365710), (115, 181824692), (140, 149355997), (161, 129874780), (196, 106682855), (230, 90912346), (245, 85346284), (322, 64937390), (460, 45456173), (490, 42673142), (644, 32468695), (805, 25974956), (980, 21336571), (1127, 18553540), (1610, 12987478), (2254, 9276770), (3220, 6493739), (4508, 4638385), (5635, 3710708), (11270, 1855354), (22540, 927677)]