28579760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{691}}^1$

素因数の和:762

約数の個数: 80

約数和(自身を含む): 74138112

約数和(自身を除く): 45558352

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 47, 55, 80, 88, 94, 110, 176, 188, 220, 235, 376, 440, 470, 517, 691, 752, 880, 940, 1034, 1382, 1880, 2068, 2585, 2764, 3455, 3760, 4136, 5170, 5528, 6910, 7601, 8272, 10340, 11056, 13820, 15202, 20680, 27640, 30404, 32477, 38005, 41360, 55280, 60808, 64954, 76010, 121616, 129908, 152020, 162385, 259816, 304040, 324770, 357247, 519632, 608080, 649540, 714494, 1299080, 1428988, 1786235, 2598160, 2857976, 3572470, 5715952, 7144940, 14289880, 28579760]

約数ペア:

[(1, 28579760), (2, 14289880), (4, 7144940), (5, 5715952), (8, 3572470), (10, 2857976), (11, 2598160), (16, 1786235), (20, 1428988), (22, 1299080), (40, 714494), (44, 649540), (47, 608080), (55, 519632), (80, 357247), (88, 324770), (94, 304040), (110, 259816), (176, 162385), (188, 152020), (220, 129908), (235, 121616), (376, 76010), (440, 64954), (470, 60808), (517, 55280), (691, 41360), (752, 38005), (880, 32477), (940, 30404), (1034, 27640), (1382, 20680), (1880, 15202), (2068, 13820), (2585, 11056), (2764, 10340), (3455, 8272), (3760, 7601), (4136, 6910), (5170, 5528)]