28419040

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1051}}^1$

素因数の和:1092

約数の個数: 72

約数和(自身を含む): 72771048

約数和(自身を除く): 44352008

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 338, 416, 520, 676, 845, 1040, 1051, 1352, 1690, 2080, 2102, 2704, 3380, 4204, 5255, 5408, 6760, 8408, 10510, 13520, 13663, 16816, 21020, 27040, 27326, 33632, 42040, 54652, 68315, 84080, 109304, 136630, 168160, 177619, 218608, 273260, 355238, 437216, 546520, 710476, 888095, 1093040, 1420952, 1776190, 2186080, 2841904, 3552380, 5683808, 7104760, 14209520, 28419040]

約数ペア:

[(1, 28419040), (2, 14209520), (4, 7104760), (5, 5683808), (8, 3552380), (10, 2841904), (13, 2186080), (16, 1776190), (20, 1420952), (26, 1093040), (32, 888095), (40, 710476), (52, 546520), (65, 437216), (80, 355238), (104, 273260), (130, 218608), (160, 177619), (169, 168160), (208, 136630), (260, 109304), (338, 84080), (416, 68315), (520, 54652), (676, 42040), (845, 33632), (1040, 27326), (1051, 27040), (1352, 21020), (1690, 16816), (2080, 13663), (2102, 13520), (2704, 10510), (3380, 8408), (4204, 6760), (5255, 5408)]