1285455875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{19891}}^1$

素因数の和:19964

約数の個数: 32

約数和(自身を含む): 1787415552

約数和(自身を除く): 501959677

約数列:

[1, 5, 11, 25, 47, 55, 125, 235, 275, 517, 1175, 1375, 2585, 5875, 12925, 19891, 64625, 99455, 218801, 497275, 934877, 1094005, 2486375, 4674385, 5470025, 10283647, 23371925, 27350125, 51418235, 116859625, 257091175, 1285455875]

約数ペア:

[(1, 1285455875), (5, 257091175), (11, 116859625), (25, 51418235), (47, 27350125), (55, 23371925), (125, 10283647), (235, 5470025), (275, 4674385), (517, 2486375), (1175, 1094005), (1375, 934877), (2585, 497275), (5875, 218801), (12925, 99455), (19891, 64625)]