25613720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2531}}^1$

素因数の和:2576

約数の個数: 64

約数和(自身を含む): 65629440

約数和(自身を除く): 40015720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 2024, 2530, 2531, 5060, 5062, 10120, 10124, 12655, 20248, 25310, 27841, 50620, 55682, 58213, 101240, 111364, 116426, 139205, 222728, 232852, 278410, 291065, 465704, 556820, 582130, 640343, 1113640, 1164260, 1280686, 2328520, 2561372, 3201715, 5122744, 6403430, 12806860, 25613720]

約数ペア:

[(1, 25613720), (2, 12806860), (4, 6403430), (5, 5122744), (8, 3201715), (10, 2561372), (11, 2328520), (20, 1280686), (22, 1164260), (23, 1113640), (40, 640343), (44, 582130), (46, 556820), (55, 465704), (88, 291065), (92, 278410), (110, 232852), (115, 222728), (184, 139205), (220, 116426), (230, 111364), (253, 101240), (440, 58213), (460, 55682), (506, 50620), (920, 27841), (1012, 25310), (1265, 20248), (2024, 12655), (2530, 10124), (2531, 10120), (5060, 5062)]