656918920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:220

約数の個数: 192

約数和(自身を含む): 1828068480

約数和(自身を除く): 1171149560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 67, 70, 76, 95, 97, 133, 134, 140, 152, 190, 194, 266, 268, 280, 335, 361, 380, 388, 469, 485, 532, 536, 665, 670, 679, 722, 760, 776, 938, 970, 1064, 1273, 1330, 1340, 1358, 1444, 1805, 1843, 1876, 1940, 2345, 2527, 2546, 2660, 2680, 2716, 2888, 3395, 3610, 3686, 3752, 3880, 4690, 5054, 5092, 5320, 5432, 6365, 6499, 6790, 7220, 7372, 8911, 9215, 9380, 10108, 10184, 12635, 12730, 12901, 12998, 13580, 14440, 14744, 17822, 18430, 18760, 20216, 24187, 25270, 25460, 25802, 25996, 27160, 32495, 35017, 35644, 36860, 44555, 45493, 48374, 50540, 50920, 51604, 51992, 64505, 64990, 70034, 71288, 73720, 89110, 90986, 96748, 101080, 103208, 120935, 123481, 129010, 129980, 140068, 169309, 175085, 178220, 181972, 193496, 227465, 241870, 245119, 246962, 258020, 259960, 280136, 338618, 350170, 356440, 363944, 454930, 483740, 490238, 493924, 516040, 617405, 677236, 700340, 846545, 864367, 909860, 967480, 980476, 987848, 1225595, 1234810, 1354472, 1400680, 1693090, 1728734, 1819720, 1960952, 2346139, 2451190, 2469620, 3386180, 3457468, 4321835, 4692278, 4902380, 4939240, 6772360, 6914936, 8643670, 9384556, 9804760, 11730695, 16422973, 17287340, 18769112, 23461390, 32845946, 34574680, 46922780, 65691892, 82114865, 93845560, 131383784, 164229730, 328459460, 656918920]

約数ペア:

[(1, 656918920), (2, 328459460), (4, 164229730), (5, 131383784), (7, 93845560), (8, 82114865), (10, 65691892), (14, 46922780), (19, 34574680), (20, 32845946), (28, 23461390), (35, 18769112), (38, 17287340), (40, 16422973), (56, 11730695), (67, 9804760), (70, 9384556), (76, 8643670), (95, 6914936), (97, 6772360), (133, 4939240), (134, 4902380), (140, 4692278), (152, 4321835), (190, 3457468), (194, 3386180), (266, 2469620), (268, 2451190), (280, 2346139), (335, 1960952), (361, 1819720), (380, 1728734), (388, 1693090), (469, 1400680), (485, 1354472), (532, 1234810), (536, 1225595), (665, 987848), (670, 980476), (679, 967480), (722, 909860), (760, 864367), (776, 846545), (938, 700340), (970, 677236), (1064, 617405), (1273, 516040), (1330, 493924), (1340, 490238), (1358, 483740), (1444, 454930), (1805, 363944), (1843, 356440), (1876, 350170), (1940, 338618), (2345, 280136), (2527, 259960), (2546, 258020), (2660, 246962), (2680, 245119), (2716, 241870), (2888, 227465), (3395, 193496), (3610, 181972), (3686, 178220), (3752, 175085), (3880, 169309), (4690, 140068), (5054, 129980), (5092, 129010), (5320, 123481), (5432, 120935), (6365, 103208), (6499, 101080), (6790, 96748), (7220, 90986), (7372, 89110), (8911, 73720), (9215, 71288), (9380, 70034), (10108, 64990), (10184, 64505), (12635, 51992), (12730, 51604), (12901, 50920), (12998, 50540), (13580, 48374), (14440, 45493), (14744, 44555), (17822, 36860), (18430, 35644), (18760, 35017), (20216, 32495), (24187, 27160), (25270, 25996), (25460, 25802)]