55385720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2477}}^1$

素因数の和:2544

約数の個数: 64

約数和(自身を含む): 137380320

約数和(自身を除く): 81994600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 520, 559, 860, 1118, 1720, 2236, 2477, 2795, 4472, 4954, 5590, 9908, 11180, 12385, 19816, 22360, 24770, 32201, 49540, 64402, 99080, 106511, 128804, 161005, 213022, 257608, 322010, 426044, 532555, 644020, 852088, 1065110, 1288040, 1384643, 2130220, 2769286, 4260440, 5538572, 6923215, 11077144, 13846430, 27692860, 55385720]

約数ペア:

[(1, 55385720), (2, 27692860), (4, 13846430), (5, 11077144), (8, 6923215), (10, 5538572), (13, 4260440), (20, 2769286), (26, 2130220), (40, 1384643), (43, 1288040), (52, 1065110), (65, 852088), (86, 644020), (104, 532555), (130, 426044), (172, 322010), (215, 257608), (260, 213022), (344, 161005), (430, 128804), (520, 106511), (559, 99080), (860, 64402), (1118, 49540), (1720, 32201), (2236, 24770), (2477, 22360), (2795, 19816), (4472, 12385), (4954, 11180), (5590, 9908)]