280409870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{277}}^1\times {\mathrm{599}}^1$

素因数の和:909

約数の個数: 48

約数和(自身を含む): 549439200

約数和(自身を除く): 269029330

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 277, 338, 554, 599, 845, 1198, 1385, 1690, 2770, 2995, 3601, 5990, 7202, 7787, 15574, 18005, 36010, 38935, 46813, 77870, 93626, 101231, 165923, 202462, 234065, 331846, 468130, 506155, 829615, 1012310, 1659230, 2156999, 4313998, 10784995, 21569990, 28040987, 56081974, 140204935, 280409870]

約数ペア:

[(1, 280409870), (2, 140204935), (5, 56081974), (10, 28040987), (13, 21569990), (26, 10784995), (65, 4313998), (130, 2156999), (169, 1659230), (277, 1012310), (338, 829615), (554, 506155), (599, 468130), (845, 331846), (1198, 234065), (1385, 202462), (1690, 165923), (2770, 101231), (2995, 93626), (3601, 77870), (5990, 46813), (7202, 38935), (7787, 36010), (15574, 18005)]