25331440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7723}}^1$

素因数の和:7777

約数の個数: 40

約数和(自身を含む): 60339888

約数和(自身を除く): 35008448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 7723, 15446, 30892, 38615, 61784, 77230, 123568, 154460, 308920, 316643, 617840, 633286, 1266572, 1583215, 2533144, 3166430, 5066288, 6332860, 12665720, 25331440]

約数ペア:

[(1, 25331440), (2, 12665720), (4, 6332860), (5, 5066288), (8, 3166430), (10, 2533144), (16, 1583215), (20, 1266572), (40, 633286), (41, 617840), (80, 316643), (82, 308920), (164, 154460), (205, 123568), (328, 77230), (410, 61784), (656, 38615), (820, 30892), (1640, 15446), (3280, 7723)]