81359200

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7823}}^1$

素因数の和:7856

約数の個数: 72

約数和(自身を含む): 213923808

約数和(自身を除く): 132564608

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1300, 2080, 2600, 5200, 7823, 10400, 15646, 31292, 39115, 62584, 78230, 101699, 125168, 156460, 195575, 203398, 250336, 312920, 391150, 406796, 508495, 625840, 782300, 813592, 1016990, 1251680, 1564600, 1627184, 2033980, 2542475, 3129200, 3254368, 4067960, 5084950, 6258400, 8135920, 10169900, 16271840, 20339800, 40679600, 81359200]

約数ペア:

[(1, 81359200), (2, 40679600), (4, 20339800), (5, 16271840), (8, 10169900), (10, 8135920), (13, 6258400), (16, 5084950), (20, 4067960), (25, 3254368), (26, 3129200), (32, 2542475), (40, 2033980), (50, 1627184), (52, 1564600), (65, 1251680), (80, 1016990), (100, 813592), (104, 782300), (130, 625840), (160, 508495), (200, 406796), (208, 391150), (260, 312920), (325, 250336), (400, 203398), (416, 195575), (520, 156460), (650, 125168), (800, 101699), (1040, 78230), (1300, 62584), (2080, 39115), (2600, 31292), (5200, 15646), (7823, 10400)]