17966687980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{137339}}^1$

素因数の和:137590

約数の個数: 48

約数和(自身を含む): 39132011520

約数和(自身を除く): 21165323540

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 211, 310, 422, 620, 844, 1055, 2110, 4220, 6541, 13082, 26164, 32705, 65410, 130820, 137339, 274678, 549356, 686695, 1373390, 2746780, 4257509, 8515018, 17030036, 21287545, 28978529, 42575090, 57957058, 85150180, 115914116, 144892645, 289785290, 579570580, 898334399, 1796668798, 3593337596, 4491671995, 8983343990, 17966687980]

約数ペア:

[(1, 17966687980), (2, 8983343990), (4, 4491671995), (5, 3593337596), (10, 1796668798), (20, 898334399), (31, 579570580), (62, 289785290), (124, 144892645), (155, 115914116), (211, 85150180), (310, 57957058), (422, 42575090), (620, 28978529), (844, 21287545), (1055, 17030036), (2110, 8515018), (4220, 4257509), (6541, 2746780), (13082, 1373390), (26164, 686695), (32705, 549356), (65410, 274678), (130820, 137339)]