718520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:116

約数の個数: 64

約数和(自身を含む): 1866240

約数和(自身を除く): 1147720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 71, 88, 92, 110, 115, 142, 184, 220, 230, 253, 284, 355, 440, 460, 506, 568, 710, 781, 920, 1012, 1265, 1420, 1562, 1633, 2024, 2530, 2840, 3124, 3266, 3905, 5060, 6248, 6532, 7810, 8165, 10120, 13064, 15620, 16330, 17963, 31240, 32660, 35926, 65320, 71852, 89815, 143704, 179630, 359260, 718520]

約数ペア:

[(1, 718520), (2, 359260), (4, 179630), (5, 143704), (8, 89815), (10, 71852), (11, 65320), (20, 35926), (22, 32660), (23, 31240), (40, 17963), (44, 16330), (46, 15620), (55, 13064), (71, 10120), (88, 8165), (92, 7810), (110, 6532), (115, 6248), (142, 5060), (184, 3905), (220, 3266), (230, 3124), (253, 2840), (284, 2530), (355, 2024), (440, 1633), (460, 1562), (506, 1420), (568, 1265), (710, 1012), (781, 920)]