25155560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{739}}^1$

素因数の和:810

約数の個数: 64

約数和(自身を含む): 60739200

約数和(自身を除く): 35583640

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 37, 40, 46, 74, 92, 115, 148, 184, 185, 230, 296, 370, 460, 739, 740, 851, 920, 1478, 1480, 1702, 2956, 3404, 3695, 4255, 5912, 6808, 7390, 8510, 14780, 16997, 17020, 27343, 29560, 33994, 34040, 54686, 67988, 84985, 109372, 135976, 136715, 169970, 218744, 273430, 339940, 546860, 628889, 679880, 1093720, 1257778, 2515556, 3144445, 5031112, 6288890, 12577780, 25155560]

約数ペア:

[(1, 25155560), (2, 12577780), (4, 6288890), (5, 5031112), (8, 3144445), (10, 2515556), (20, 1257778), (23, 1093720), (37, 679880), (40, 628889), (46, 546860), (74, 339940), (92, 273430), (115, 218744), (148, 169970), (184, 136715), (185, 135976), (230, 109372), (296, 84985), (370, 67988), (460, 54686), (739, 34040), (740, 33994), (851, 29560), (920, 27343), (1478, 17020), (1480, 16997), (1702, 14780), (2956, 8510), (3404, 7390), (3695, 6808), (4255, 5912)]