52720720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{311}}^1$

素因数の和:500

約数の個数: 80

約数和(自身を含む): 133241472

約数和(自身を除く): 80520752

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 163, 208, 260, 311, 326, 520, 622, 652, 815, 1040, 1244, 1304, 1555, 1630, 2119, 2488, 2608, 3110, 3260, 4043, 4238, 4976, 6220, 6520, 8086, 8476, 10595, 12440, 13040, 16172, 16952, 20215, 21190, 24880, 32344, 33904, 40430, 42380, 50693, 64688, 80860, 84760, 101386, 161720, 169520, 202772, 253465, 323440, 405544, 506930, 659009, 811088, 1013860, 1318018, 2027720, 2636036, 3295045, 4055440, 5272072, 6590090, 10544144, 13180180, 26360360, 52720720]

約数ペア:

[(1, 52720720), (2, 26360360), (4, 13180180), (5, 10544144), (8, 6590090), (10, 5272072), (13, 4055440), (16, 3295045), (20, 2636036), (26, 2027720), (40, 1318018), (52, 1013860), (65, 811088), (80, 659009), (104, 506930), (130, 405544), (163, 323440), (208, 253465), (260, 202772), (311, 169520), (326, 161720), (520, 101386), (622, 84760), (652, 80860), (815, 64688), (1040, 50693), (1244, 42380), (1304, 40430), (1555, 33904), (1630, 32344), (2119, 24880), (2488, 21190), (2608, 20215), (3110, 16952), (3260, 16172), (4043, 13040), (4238, 12440), (4976, 10595), (6220, 8476), (6520, 8086)]