1345760

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:675

約数の個数: 48

約数和(自身を含む): 3429216

約数和(自身を除く): 2083456

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 647, 1040, 1294, 2080, 2588, 3235, 5176, 6470, 8411, 10352, 12940, 16822, 20704, 25880, 33644, 42055, 51760, 67288, 84110, 103520, 134576, 168220, 269152, 336440, 672880, 1345760]

約数ペア:

[(1, 1345760), (2, 672880), (4, 336440), (5, 269152), (8, 168220), (10, 134576), (13, 103520), (16, 84110), (20, 67288), (26, 51760), (32, 42055), (40, 33644), (52, 25880), (65, 20704), (80, 16822), (104, 12940), (130, 10352), (160, 8411), (208, 6470), (260, 5176), (416, 3235), (520, 2588), (647, 2080), (1040, 1294)]