260680

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{19}}^1$

素因数の和:51

約数の個数: 64

約数和(自身を含む): 720000

約数和(自身を除く): 459320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 343, 380, 392, 490, 532, 665, 686, 760, 931, 980, 1064, 1330, 1372, 1715, 1862, 1960, 2660, 2744, 3430, 3724, 4655, 5320, 6517, 6860, 7448, 9310, 13034, 13720, 18620, 26068, 32585, 37240, 52136, 65170, 130340, 260680]

約数ペア:

[(1, 260680), (2, 130340), (4, 65170), (5, 52136), (7, 37240), (8, 32585), (10, 26068), (14, 18620), (19, 13720), (20, 13034), (28, 9310), (35, 7448), (38, 6860), (40, 6517), (49, 5320), (56, 4655), (70, 3724), (76, 3430), (95, 2744), (98, 2660), (133, 1960), (140, 1862), (152, 1715), (190, 1372), (196, 1330), (245, 1064), (266, 980), (280, 931), (343, 760), (380, 686), (392, 665), (490, 532)]