20154779710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{16481}}^1$

素因数の和:16933

約数の個数: 64

約数和(自身を含む): 40870085760

約数和(自身を除く): 20715306050

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 409, 598, 818, 1495, 2045, 2990, 4090, 5317, 9407, 10634, 16481, 18814, 26585, 32962, 47035, 53170, 82405, 94070, 122291, 164810, 214253, 244582, 379063, 428506, 611455, 758126, 1071265, 1222910, 1895315, 2142530, 3790630, 4927819, 6740729, 9855638, 13481458, 24639095, 33703645, 49278190, 67407290, 87629477, 155036767, 175258954, 310073534, 438147385, 775183835, 876294770, 1550367670, 2015477971, 4030955942, 10077389855, 20154779710]

約数ペア:

[(1, 20154779710), (2, 10077389855), (5, 4030955942), (10, 2015477971), (13, 1550367670), (23, 876294770), (26, 775183835), (46, 438147385), (65, 310073534), (115, 175258954), (130, 155036767), (230, 87629477), (299, 67407290), (409, 49278190), (598, 33703645), (818, 24639095), (1495, 13481458), (2045, 9855638), (2990, 6740729), (4090, 4927819), (5317, 3790630), (9407, 2142530), (10634, 1895315), (16481, 1222910), (18814, 1071265), (26585, 758126), (32962, 611455), (47035, 428506), (53170, 379063), (82405, 244582), (94070, 214253), (122291, 164810)]