31717840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1$

素因数の和:321

約数の個数: 160

約数和(自身を含む): 97136640

約数和(自身を除く): 65418800

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 19, 20, 22, 28, 35, 38, 40, 44, 55, 56, 70, 76, 77, 80, 88, 95, 110, 112, 133, 140, 152, 154, 176, 190, 209, 220, 266, 271, 280, 304, 308, 380, 385, 418, 440, 532, 542, 560, 616, 665, 760, 770, 836, 880, 1045, 1064, 1084, 1232, 1330, 1355, 1463, 1520, 1540, 1672, 1897, 2090, 2128, 2168, 2660, 2710, 2926, 2981, 3080, 3344, 3794, 4180, 4336, 5149, 5320, 5420, 5852, 5962, 6160, 7315, 7588, 8360, 9485, 10298, 10640, 10840, 11704, 11924, 14630, 14905, 15176, 16720, 18970, 20596, 20867, 21680, 23408, 23848, 25745, 29260, 29810, 30352, 36043, 37940, 41192, 41734, 47696, 51490, 56639, 58520, 59620, 72086, 75880, 82384, 83468, 102980, 104335, 113278, 117040, 119240, 144172, 151760, 166936, 180215, 205960, 208670, 226556, 238480, 283195, 288344, 333872, 360430, 396473, 411920, 417340, 453112, 566390, 576688, 720860, 792946, 834680, 906224, 1132780, 1441720, 1585892, 1669360, 1982365, 2265560, 2883440, 3171784, 3964730, 4531120, 6343568, 7929460, 15858920, 31717840]

約数ペア:

[(1, 31717840), (2, 15858920), (4, 7929460), (5, 6343568), (7, 4531120), (8, 3964730), (10, 3171784), (11, 2883440), (14, 2265560), (16, 1982365), (19, 1669360), (20, 1585892), (22, 1441720), (28, 1132780), (35, 906224), (38, 834680), (40, 792946), (44, 720860), (55, 576688), (56, 566390), (70, 453112), (76, 417340), (77, 411920), (80, 396473), (88, 360430), (95, 333872), (110, 288344), (112, 283195), (133, 238480), (140, 226556), (152, 208670), (154, 205960), (176, 180215), (190, 166936), (209, 151760), (220, 144172), (266, 119240), (271, 117040), (280, 113278), (304, 104335), (308, 102980), (380, 83468), (385, 82384), (418, 75880), (440, 72086), (532, 59620), (542, 58520), (560, 56639), (616, 51490), (665, 47696), (760, 41734), (770, 41192), (836, 37940), (880, 36043), (1045, 30352), (1064, 29810), (1084, 29260), (1232, 25745), (1330, 23848), (1355, 23408), (1463, 21680), (1520, 20867), (1540, 20596), (1672, 18970), (1897, 16720), (2090, 15176), (2128, 14905), (2168, 14630), (2660, 11924), (2710, 11704), (2926, 10840), (2981, 10640), (3080, 10298), (3344, 9485), (3794, 8360), (4180, 7588), (4336, 7315), (5149, 6160), (5320, 5962), (5420, 5852)]