25974320

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7919}}^1$

素因数の和:7973

約数の個数: 40

約数和(自身を含む): 61871040

約数和(自身を除く): 35896720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 7919, 15838, 31676, 39595, 63352, 79190, 126704, 158380, 316760, 324679, 633520, 649358, 1298716, 1623395, 2597432, 3246790, 5194864, 6493580, 12987160, 25974320]

約数ペア:

[(1, 25974320), (2, 12987160), (4, 6493580), (5, 5194864), (8, 3246790), (10, 2597432), (16, 1623395), (20, 1298716), (40, 649358), (41, 633520), (80, 324679), (82, 316760), (164, 158380), (205, 126704), (328, 79190), (410, 63352), (656, 39595), (820, 31676), (1640, 15838), (3280, 7919)]