402639340

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1\times {\mathrm{1093}}^1$

素因数の和:1378

約数の個数: 48

約数和(自身を含む): 859043808

約数和(自身を除く): 456404468

約数列:

[1, 2, 4, 5, 10, 20, 113, 163, 226, 326, 452, 565, 652, 815, 1093, 1130, 1630, 2186, 2260, 3260, 4372, 5465, 10930, 18419, 21860, 36838, 73676, 92095, 123509, 178159, 184190, 247018, 356318, 368380, 494036, 617545, 712636, 890795, 1235090, 1781590, 2470180, 3563180, 20131967, 40263934, 80527868, 100659835, 201319670, 402639340]

約数ペア:

[(1, 402639340), (2, 201319670), (4, 100659835), (5, 80527868), (10, 40263934), (20, 20131967), (113, 3563180), (163, 2470180), (226, 1781590), (326, 1235090), (452, 890795), (565, 712636), (652, 617545), (815, 494036), (1093, 368380), (1130, 356318), (1630, 247018), (2186, 184190), (2260, 178159), (3260, 123509), (4372, 92095), (5465, 73676), (10930, 36838), (18419, 21860)]