28336880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2477}}^1$

素因数の和:2514

約数の個数: 80

約数和(自身を含む): 77432544

約数和(自身を除く): 49095664

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 2288, 2477, 2860, 4954, 5720, 9908, 11440, 12385, 19816, 24770, 27247, 32201, 39632, 49540, 54494, 64402, 99080, 108988, 128804, 136235, 161005, 198160, 217976, 257608, 272470, 322010, 354211, 435952, 515216, 544940, 644020, 708422, 1089880, 1288040, 1416844, 1771055, 2179760, 2576080, 2833688, 3542110, 5667376, 7084220, 14168440, 28336880]

約数ペア:

[(1, 28336880), (2, 14168440), (4, 7084220), (5, 5667376), (8, 3542110), (10, 2833688), (11, 2576080), (13, 2179760), (16, 1771055), (20, 1416844), (22, 1288040), (26, 1089880), (40, 708422), (44, 644020), (52, 544940), (55, 515216), (65, 435952), (80, 354211), (88, 322010), (104, 272470), (110, 257608), (130, 217976), (143, 198160), (176, 161005), (208, 136235), (220, 128804), (260, 108988), (286, 99080), (440, 64402), (520, 54494), (572, 49540), (715, 39632), (880, 32201), (1040, 27247), (1144, 24770), (1430, 19816), (2288, 12385), (2477, 11440), (2860, 9908), (4954, 5720)]