1285756940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{113}}^1\times {\mathrm{409}}^1$

素因数の和:651

約数の個数: 96

約数和(自身を含む): 2968176960

約数和(自身を除く): 1682420020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 113, 130, 214, 226, 260, 409, 428, 452, 535, 565, 818, 1070, 1130, 1391, 1469, 1636, 2045, 2140, 2260, 2782, 2938, 4090, 5317, 5564, 5876, 6955, 7345, 8180, 10634, 12091, 13910, 14690, 21268, 24182, 26585, 27820, 29380, 43763, 46217, 48364, 53170, 60455, 87526, 92434, 106340, 120910, 157183, 175052, 184868, 218815, 231085, 241820, 314366, 437630, 462170, 568919, 600821, 628732, 785915, 875260, 924340, 1137838, 1201642, 1571830, 2275676, 2403284, 2844595, 3004105, 3143660, 4945219, 5689190, 6008210, 9890438, 11378380, 12016420, 19780876, 24726095, 49452190, 64287847, 98904380, 128575694, 257151388, 321439235, 642878470, 1285756940]

約数ペア:

[(1, 1285756940), (2, 642878470), (4, 321439235), (5, 257151388), (10, 128575694), (13, 98904380), (20, 64287847), (26, 49452190), (52, 24726095), (65, 19780876), (107, 12016420), (113, 11378380), (130, 9890438), (214, 6008210), (226, 5689190), (260, 4945219), (409, 3143660), (428, 3004105), (452, 2844595), (535, 2403284), (565, 2275676), (818, 1571830), (1070, 1201642), (1130, 1137838), (1391, 924340), (1469, 875260), (1636, 785915), (2045, 628732), (2140, 600821), (2260, 568919), (2782, 462170), (2938, 437630), (4090, 314366), (5317, 241820), (5564, 231085), (5876, 218815), (6955, 184868), (7345, 175052), (8180, 157183), (10634, 120910), (12091, 106340), (13910, 92434), (14690, 87526), (21268, 60455), (24182, 53170), (26585, 48364), (27820, 46217), (29380, 43763)]