389699388

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{26861}}^1$

素因数の和:26915

約数の個数: 72

約数和(自身を含む): 1095110016

約数和(自身を除く): 705410628

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 186, 234, 279, 372, 403, 468, 558, 806, 1116, 1209, 1612, 2418, 3627, 4836, 7254, 14508, 26861, 53722, 80583, 107444, 161166, 241749, 322332, 349193, 483498, 698386, 832691, 966996, 1047579, 1396772, 1665382, 2095158, 2498073, 3142737, 3330764, 4190316, 4996146, 6285474, 7494219, 9992292, 10824983, 12570948, 14988438, 21649966, 29976876, 32474949, 43299932, 64949898, 97424847, 129899796, 194849694, 389699388]

約数ペア:

[(1, 389699388), (2, 194849694), (3, 129899796), (4, 97424847), (6, 64949898), (9, 43299932), (12, 32474949), (13, 29976876), (18, 21649966), (26, 14988438), (31, 12570948), (36, 10824983), (39, 9992292), (52, 7494219), (62, 6285474), (78, 4996146), (93, 4190316), (117, 3330764), (124, 3142737), (156, 2498073), (186, 2095158), (234, 1665382), (279, 1396772), (372, 1047579), (403, 966996), (468, 832691), (558, 698386), (806, 483498), (1116, 349193), (1209, 322332), (1612, 241749), (2418, 161166), (3627, 107444), (4836, 80583), (7254, 53722), (14508, 26861)]