8213720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:332

約数の個数: 64

約数和(自身を含む): 20062080

約数和(自身を除く): 11848360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 257, 340, 376, 470, 514, 680, 799, 940, 1028, 1285, 1598, 1880, 2056, 2570, 3196, 3995, 4369, 5140, 6392, 7990, 8738, 10280, 12079, 15980, 17476, 21845, 24158, 31960, 34952, 43690, 48316, 60395, 87380, 96632, 120790, 174760, 205343, 241580, 410686, 483160, 821372, 1026715, 1642744, 2053430, 4106860, 8213720]

約数ペア:

[(1, 8213720), (2, 4106860), (4, 2053430), (5, 1642744), (8, 1026715), (10, 821372), (17, 483160), (20, 410686), (34, 241580), (40, 205343), (47, 174760), (68, 120790), (85, 96632), (94, 87380), (136, 60395), (170, 48316), (188, 43690), (235, 34952), (257, 31960), (340, 24158), (376, 21845), (470, 17476), (514, 15980), (680, 12079), (799, 10280), (940, 8738), (1028, 7990), (1285, 6392), (1598, 5140), (1880, 4369), (2056, 3995), (2570, 3196)]