153218840

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:516

約数の個数: 64

約数和(自身を含む): 351993600

約数和(自身を除く): 198774760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 193, 223, 356, 386, 445, 446, 712, 772, 890, 892, 965, 1115, 1544, 1780, 1784, 1930, 2230, 3560, 3860, 4460, 7720, 8920, 17177, 19847, 34354, 39694, 43039, 68708, 79388, 85885, 86078, 99235, 137416, 158776, 171770, 172156, 198470, 215195, 343540, 344312, 396940, 430390, 687080, 793880, 860780, 1721560, 3830471, 7660942, 15321884, 19152355, 30643768, 38304710, 76609420, 153218840]

約数ペア:

[(1, 153218840), (2, 76609420), (4, 38304710), (5, 30643768), (8, 19152355), (10, 15321884), (20, 7660942), (40, 3830471), (89, 1721560), (178, 860780), (193, 793880), (223, 687080), (356, 430390), (386, 396940), (445, 344312), (446, 343540), (712, 215195), (772, 198470), (890, 172156), (892, 171770), (965, 158776), (1115, 137416), (1544, 99235), (1780, 86078), (1784, 85885), (1930, 79388), (2230, 68708), (3560, 43039), (3860, 39694), (4460, 34354), (7720, 19847), (8920, 17177)]