25406720

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{863}}^1$

素因数の和:907

約数の個数: 72

約数和(自身を含む): 63576576

約数和(自身を除く): 38169856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 640, 736, 863, 920, 1280, 1472, 1726, 1840, 2944, 3452, 3680, 4315, 5888, 6904, 7360, 8630, 13808, 14720, 17260, 19849, 27616, 29440, 34520, 39698, 55232, 69040, 79396, 99245, 110464, 138080, 158792, 198490, 220928, 276160, 317584, 396980, 552320, 635168, 793960, 1104640, 1270336, 1587920, 2540672, 3175840, 5081344, 6351680, 12703360, 25406720]

約数ペア:

[(1, 25406720), (2, 12703360), (4, 6351680), (5, 5081344), (8, 3175840), (10, 2540672), (16, 1587920), (20, 1270336), (23, 1104640), (32, 793960), (40, 635168), (46, 552320), (64, 396980), (80, 317584), (92, 276160), (115, 220928), (128, 198490), (160, 158792), (184, 138080), (230, 110464), (256, 99245), (320, 79396), (368, 69040), (460, 55232), (640, 39698), (736, 34520), (863, 29440), (920, 27616), (1280, 19849), (1472, 17260), (1726, 14720), (1840, 13808), (2944, 8630), (3452, 7360), (3680, 6904), (4315, 5888)]