285779920

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{619}}^1$

素因数の和:860

約数の個数: 80

約数和(自身を含む): 691920000

約数和(自身を除く): 406140080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 199, 232, 290, 398, 464, 580, 619, 796, 995, 1160, 1238, 1592, 1990, 2320, 2476, 3095, 3184, 3980, 4952, 5771, 6190, 7960, 9904, 11542, 12380, 15920, 17951, 23084, 24760, 28855, 35902, 46168, 49520, 57710, 71804, 89755, 92336, 115420, 123181, 143608, 179510, 230840, 246362, 287216, 359020, 461680, 492724, 615905, 718040, 985448, 1231810, 1436080, 1970896, 2463620, 3572249, 4927240, 7144498, 9854480, 14288996, 17861245, 28577992, 35722490, 57155984, 71444980, 142889960, 285779920]

約数ペア:

[(1, 285779920), (2, 142889960), (4, 71444980), (5, 57155984), (8, 35722490), (10, 28577992), (16, 17861245), (20, 14288996), (29, 9854480), (40, 7144498), (58, 4927240), (80, 3572249), (116, 2463620), (145, 1970896), (199, 1436080), (232, 1231810), (290, 985448), (398, 718040), (464, 615905), (580, 492724), (619, 461680), (796, 359020), (995, 287216), (1160, 246362), (1238, 230840), (1592, 179510), (1990, 143608), (2320, 123181), (2476, 115420), (3095, 92336), (3184, 89755), (3980, 71804), (4952, 57710), (5771, 49520), (6190, 46168), (7960, 35902), (9904, 28855), (11542, 24760), (12380, 23084), (15920, 17951)]