81679600

素因数分解:

$2^4\times 5^2\times {\mathrm{59}}^1\times {\mathrm{3461}}^1$

素因数の和:3538

約数の個数: 60

約数和(自身を含む): 199618920

約数和(自身を除く): 117939320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 59, 80, 100, 118, 200, 236, 295, 400, 472, 590, 944, 1180, 1475, 2360, 2950, 3461, 4720, 5900, 6922, 11800, 13844, 17305, 23600, 27688, 34610, 55376, 69220, 86525, 138440, 173050, 204199, 276880, 346100, 408398, 692200, 816796, 1020995, 1384400, 1633592, 2041990, 3267184, 4083980, 5104975, 8167960, 10209950, 16335920, 20419900, 40839800, 81679600]

約数ペア:

[(1, 81679600), (2, 40839800), (4, 20419900), (5, 16335920), (8, 10209950), (10, 8167960), (16, 5104975), (20, 4083980), (25, 3267184), (40, 2041990), (50, 1633592), (59, 1384400), (80, 1020995), (100, 816796), (118, 692200), (200, 408398), (236, 346100), (295, 276880), (400, 204199), (472, 173050), (590, 138440), (944, 86525), (1180, 69220), (1475, 55376), (2360, 34610), (2950, 27688), (3461, 23600), (4720, 17305), (5900, 13844), (6922, 11800)]