131503180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:311

約数の個数: 96

約数和(自身を含む): 306432000

約数和(自身を除く): 174928820

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 47, 74, 76, 94, 95, 148, 185, 188, 190, 199, 235, 370, 380, 398, 470, 703, 740, 796, 893, 940, 995, 1406, 1739, 1786, 1990, 2812, 3478, 3515, 3572, 3781, 3980, 4465, 6956, 7030, 7363, 7562, 8695, 8930, 9353, 14060, 14726, 15124, 17390, 17860, 18706, 18905, 29452, 33041, 34780, 36815, 37412, 37810, 46765, 66082, 73630, 75620, 93530, 132164, 139897, 147260, 165205, 177707, 187060, 279794, 330410, 346061, 355414, 559588, 660820, 692122, 699485, 710828, 888535, 1384244, 1398970, 1730305, 1777070, 2797940, 3460610, 3554140, 6575159, 6921220, 13150318, 26300636, 32875795, 65751590, 131503180]

約数ペア:

[(1, 131503180), (2, 65751590), (4, 32875795), (5, 26300636), (10, 13150318), (19, 6921220), (20, 6575159), (37, 3554140), (38, 3460610), (47, 2797940), (74, 1777070), (76, 1730305), (94, 1398970), (95, 1384244), (148, 888535), (185, 710828), (188, 699485), (190, 692122), (199, 660820), (235, 559588), (370, 355414), (380, 346061), (398, 330410), (470, 279794), (703, 187060), (740, 177707), (796, 165205), (893, 147260), (940, 139897), (995, 132164), (1406, 93530), (1739, 75620), (1786, 73630), (1990, 66082), (2812, 46765), (3478, 37810), (3515, 37412), (3572, 36815), (3781, 34780), (3980, 33041), (4465, 29452), (6956, 18905), (7030, 18706), (7363, 17860), (7562, 17390), (8695, 15124), (8930, 14726), (9353, 14060)]