25265840

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7703}}^1$

素因数の和:7757

約数の個数: 40

約数和(自身を含む): 60183648

約数和(自身を除く): 34917808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 7703, 15406, 30812, 38515, 61624, 77030, 123248, 154060, 308120, 315823, 616240, 631646, 1263292, 1579115, 2526584, 3158230, 5053168, 6316460, 12632920, 25265840]

約数ペア:

[(1, 25265840), (2, 12632920), (4, 6316460), (5, 5053168), (8, 3158230), (10, 2526584), (16, 1579115), (20, 1263292), (40, 631646), (41, 616240), (80, 315823), (82, 308120), (164, 154060), (205, 123248), (328, 77030), (410, 61624), (656, 38515), (820, 30812), (1640, 15406), (3280, 7703)]