140972920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{7451}}^1$

素因数の和:7516

約数の個数: 64

約数和(自身を含む): 354119040

約数和(自身を除く): 213146120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1720, 1892, 2365, 3784, 4730, 7451, 9460, 14902, 18920, 29804, 37255, 59608, 74510, 81961, 149020, 163922, 298040, 320393, 327844, 409805, 640786, 655688, 819610, 1281572, 1601965, 1639220, 2563144, 3203930, 3278440, 3524323, 6407860, 7048646, 12815720, 14097292, 17621615, 28194584, 35243230, 70486460, 140972920]

約数ペア:

[(1, 140972920), (2, 70486460), (4, 35243230), (5, 28194584), (8, 17621615), (10, 14097292), (11, 12815720), (20, 7048646), (22, 6407860), (40, 3524323), (43, 3278440), (44, 3203930), (55, 2563144), (86, 1639220), (88, 1601965), (110, 1281572), (172, 819610), (215, 655688), (220, 640786), (344, 409805), (430, 327844), (440, 320393), (473, 298040), (860, 163922), (946, 149020), (1720, 81961), (1892, 74510), (2365, 59608), (3784, 37255), (4730, 29804), (7451, 18920), (9460, 14902)]