1286500

素因数分解:

$2^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:133

約数の個数: 48

約数和(自身を含む): 2935296

約数和(自身を除く): 1648796

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 83, 100, 124, 125, 155, 166, 250, 310, 332, 415, 500, 620, 775, 830, 1550, 1660, 2075, 2573, 3100, 3875, 4150, 5146, 7750, 8300, 10292, 10375, 12865, 15500, 20750, 25730, 41500, 51460, 64325, 128650, 257300, 321625, 643250, 1286500]

約数ペア:

[(1, 1286500), (2, 643250), (4, 321625), (5, 257300), (10, 128650), (20, 64325), (25, 51460), (31, 41500), (50, 25730), (62, 20750), (83, 15500), (100, 12865), (124, 10375), (125, 10292), (155, 8300), (166, 7750), (250, 5146), (310, 4150), (332, 3875), (415, 3100), (500, 2573), (620, 2075), (775, 1660), (830, 1550)]