18999032

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 21643528

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 71, 83, 104, 124, 142, 166, 248, 284, 332, 403, 568, 664, 806, 923, 1079, 1612, 1846, 2158, 2201, 2573, 3224, 3692, 4316, 4402, 5146, 5893, 7384, 8632, 8804, 10292, 11786, 17608, 20584, 23572, 28613, 33449, 47144, 57226, 66898, 76609, 114452, 133796, 153218, 182683, 228904, 267592, 306436, 365366, 612872, 730732, 1461464, 2374879, 4749758, 9499516, 18999032]

約数ペア:

[(1, 18999032), (2, 9499516), (4, 4749758), (8, 2374879), (13, 1461464), (26, 730732), (31, 612872), (52, 365366), (62, 306436), (71, 267592), (83, 228904), (104, 182683), (124, 153218), (142, 133796), (166, 114452), (248, 76609), (284, 66898), (332, 57226), (403, 47144), (568, 33449), (664, 28613), (806, 23572), (923, 20584), (1079, 17608), (1612, 11786), (1846, 10292), (2158, 8804), (2201, 8632), (2573, 7384), (3224, 5893), (3692, 5146), (4316, 4402)]