28671280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1051}}^1$

素因数の和:1106

約数の個数: 80

約数和(自身を含む): 75138048

約数和(自身を除く): 46466768

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1051, 1240, 1364, 1705, 2102, 2480, 2728, 3410, 4204, 5255, 5456, 6820, 8408, 10510, 11561, 13640, 16816, 21020, 23122, 27280, 32581, 42040, 46244, 57805, 65162, 84080, 92488, 115610, 130324, 162905, 184976, 231220, 260648, 325810, 358391, 462440, 521296, 651620, 716782, 924880, 1303240, 1433564, 1791955, 2606480, 2867128, 3583910, 5734256, 7167820, 14335640, 28671280]

約数ペア:

[(1, 28671280), (2, 14335640), (4, 7167820), (5, 5734256), (8, 3583910), (10, 2867128), (11, 2606480), (16, 1791955), (20, 1433564), (22, 1303240), (31, 924880), (40, 716782), (44, 651620), (55, 521296), (62, 462440), (80, 358391), (88, 325810), (110, 260648), (124, 231220), (155, 184976), (176, 162905), (220, 130324), (248, 115610), (310, 92488), (341, 84080), (440, 65162), (496, 57805), (620, 46244), (682, 42040), (880, 32581), (1051, 27280), (1240, 23122), (1364, 21020), (1705, 16816), (2102, 13640), (2480, 11561), (2728, 10510), (3410, 8408), (4204, 6820), (5255, 5456)]