161703920

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:188

約数の個数: 160

約数和(自身を含む): 449971200

約数和(自身を除く): 288267280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 71, 80, 83, 98, 112, 140, 142, 166, 196, 245, 280, 284, 332, 343, 355, 392, 415, 490, 497, 560, 568, 581, 664, 686, 710, 784, 830, 980, 994, 1136, 1162, 1328, 1372, 1420, 1660, 1715, 1960, 1988, 2324, 2485, 2744, 2840, 2905, 3320, 3430, 3479, 3920, 3976, 4067, 4648, 4970, 5488, 5680, 5810, 5893, 6640, 6860, 6958, 7952, 8134, 9296, 9940, 11620, 11786, 13720, 13916, 16268, 17395, 19880, 20335, 23240, 23572, 24353, 27440, 27832, 28469, 29465, 32536, 34790, 39760, 40670, 41251, 46480, 47144, 48706, 55664, 56938, 58930, 65072, 69580, 81340, 82502, 94288, 97412, 113876, 117860, 121765, 139160, 142345, 162680, 165004, 194824, 206255, 227752, 235720, 243530, 278320, 284690, 288757, 325360, 330008, 389648, 412510, 455504, 471440, 487060, 569380, 577514, 660016, 825020, 974120, 1138760, 1155028, 1443785, 1650040, 1948240, 2021299, 2277520, 2310056, 2887570, 3300080, 4042598, 4620112, 5775140, 8085196, 10106495, 11550280, 16170392, 20212990, 23100560, 32340784, 40425980, 80851960, 161703920]

約数ペア:

[(1, 161703920), (2, 80851960), (4, 40425980), (5, 32340784), (7, 23100560), (8, 20212990), (10, 16170392), (14, 11550280), (16, 10106495), (20, 8085196), (28, 5775140), (35, 4620112), (40, 4042598), (49, 3300080), (56, 2887570), (70, 2310056), (71, 2277520), (80, 2021299), (83, 1948240), (98, 1650040), (112, 1443785), (140, 1155028), (142, 1138760), (166, 974120), (196, 825020), (245, 660016), (280, 577514), (284, 569380), (332, 487060), (343, 471440), (355, 455504), (392, 412510), (415, 389648), (490, 330008), (497, 325360), (560, 288757), (568, 284690), (581, 278320), (664, 243530), (686, 235720), (710, 227752), (784, 206255), (830, 194824), (980, 165004), (994, 162680), (1136, 142345), (1162, 139160), (1328, 121765), (1372, 117860), (1420, 113876), (1660, 97412), (1715, 94288), (1960, 82502), (1988, 81340), (2324, 69580), (2485, 65072), (2744, 58930), (2840, 56938), (2905, 55664), (3320, 48706), (3430, 47144), (3479, 46480), (3920, 41251), (3976, 40670), (4067, 39760), (4648, 34790), (4970, 32536), (5488, 29465), (5680, 28469), (5810, 27832), (5893, 27440), (6640, 24353), (6860, 23572), (6958, 23240), (7952, 20335), (8134, 19880), (9296, 17395), (9940, 16268), (11620, 13916), (11786, 13720)]