555560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:90

約数の個数: 64

約数和(自身を含む): 1425600

約数和(自身を除く): 870040

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 43, 68, 76, 85, 86, 95, 136, 152, 170, 172, 190, 215, 323, 340, 344, 380, 430, 646, 680, 731, 760, 817, 860, 1292, 1462, 1615, 1634, 1720, 2584, 2924, 3230, 3268, 3655, 4085, 5848, 6460, 6536, 7310, 8170, 12920, 13889, 14620, 16340, 27778, 29240, 32680, 55556, 69445, 111112, 138890, 277780, 555560]

約数ペア:

[(1, 555560), (2, 277780), (4, 138890), (5, 111112), (8, 69445), (10, 55556), (17, 32680), (19, 29240), (20, 27778), (34, 16340), (38, 14620), (40, 13889), (43, 12920), (68, 8170), (76, 7310), (85, 6536), (86, 6460), (95, 5848), (136, 4085), (152, 3655), (170, 3268), (172, 3230), (190, 2924), (215, 2584), (323, 1720), (340, 1634), (344, 1615), (380, 1462), (430, 1292), (646, 860), (680, 817), (731, 760)]