81435500

素因数分解:

$2^2\times 5^3\times {\mathrm{271}}^1\times {\mathrm{601}}^1$

素因数の和:891

約数の個数: 48

約数和(自身を含む): 178808448

約数和(自身を除く): 97372948

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 271, 500, 542, 601, 1084, 1202, 1355, 2404, 2710, 3005, 5420, 6010, 6775, 12020, 13550, 15025, 27100, 30050, 33875, 60100, 67750, 75125, 135500, 150250, 162871, 300500, 325742, 651484, 814355, 1628710, 3257420, 4071775, 8143550, 16287100, 20358875, 40717750, 81435500]

約数ペア:

[(1, 81435500), (2, 40717750), (4, 20358875), (5, 16287100), (10, 8143550), (20, 4071775), (25, 3257420), (50, 1628710), (100, 814355), (125, 651484), (250, 325742), (271, 300500), (500, 162871), (542, 150250), (601, 135500), (1084, 75125), (1202, 67750), (1355, 60100), (2404, 33875), (2710, 30050), (3005, 27100), (5420, 15025), (6010, 13550), (6775, 12020)]