21083345540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{2749}}^1$

素因数の和:3045

約数の個数: 96

約数和(自身を含む): 46569600000

約数和(自身を除く): 25486254460

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 199, 205, 235, 398, 410, 470, 796, 820, 940, 995, 1927, 1990, 2749, 3854, 3980, 5498, 7708, 8159, 9353, 9635, 10996, 13745, 16318, 18706, 19270, 27490, 32636, 37412, 38540, 40795, 46765, 54980, 81590, 93530, 112709, 129203, 163180, 187060, 225418, 258406, 383473, 450836, 516812, 547051, 563545, 646015, 766946, 1094102, 1127090, 1292030, 1533892, 1917365, 2188204, 2254180, 2584060, 2735255, 3834730, 5297323, 5470510, 7669460, 10594646, 10941020, 21189292, 22429091, 25711397, 26486615, 44858182, 51422794, 52973230, 89716364, 102845588, 105946460, 112145455, 128556985, 224290910, 257113970, 448581820, 514227940, 1054167277, 2108334554, 4216669108, 5270836385, 10541672770, 21083345540]

約数ペア:

[(1, 21083345540), (2, 10541672770), (4, 5270836385), (5, 4216669108), (10, 2108334554), (20, 1054167277), (41, 514227940), (47, 448581820), (82, 257113970), (94, 224290910), (164, 128556985), (188, 112145455), (199, 105946460), (205, 102845588), (235, 89716364), (398, 52973230), (410, 51422794), (470, 44858182), (796, 26486615), (820, 25711397), (940, 22429091), (995, 21189292), (1927, 10941020), (1990, 10594646), (2749, 7669460), (3854, 5470510), (3980, 5297323), (5498, 3834730), (7708, 2735255), (8159, 2584060), (9353, 2254180), (9635, 2188204), (10996, 1917365), (13745, 1533892), (16318, 1292030), (18706, 1127090), (19270, 1094102), (27490, 766946), (32636, 646015), (37412, 563545), (38540, 547051), (40795, 516812), (46765, 450836), (54980, 383473), (81590, 258406), (93530, 225418), (112709, 187060), (129203, 163180)]