18043120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13267}}^1$

素因数の和:13297

約数の個数: 40

約数和(自身を含む): 44421264

約数和(自身を除く): 26378144

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 13267, 26534, 53068, 66335, 106136, 132670, 212272, 225539, 265340, 451078, 530680, 902156, 1061360, 1127695, 1804312, 2255390, 3608624, 4510780, 9021560, 18043120]

約数ペア:

[(1, 18043120), (2, 9021560), (4, 4510780), (5, 3608624), (8, 2255390), (10, 1804312), (16, 1127695), (17, 1061360), (20, 902156), (34, 530680), (40, 451078), (68, 265340), (80, 225539), (85, 212272), (136, 132670), (170, 106136), (272, 66335), (340, 53068), (680, 26534), (1360, 13267)]