205678480

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{739}}^1$

素因数の和:837

約数の個数: 120

約数和(自身を含む): 564874560

約数和(自身を除く): 359196080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 71, 80, 98, 112, 140, 142, 196, 245, 280, 284, 355, 392, 490, 497, 560, 568, 710, 739, 784, 980, 994, 1136, 1420, 1478, 1960, 1988, 2485, 2840, 2956, 3479, 3695, 3920, 3976, 4970, 5173, 5680, 5912, 6958, 7390, 7952, 9940, 10346, 11824, 13916, 14780, 17395, 19880, 20692, 25865, 27832, 29560, 34790, 36211, 39760, 41384, 51730, 52469, 55664, 59120, 69580, 72422, 82768, 103460, 104938, 139160, 144844, 181055, 206920, 209876, 262345, 278320, 289688, 362110, 367283, 413840, 419752, 524690, 579376, 724220, 734566, 839504, 1049380, 1448440, 1469132, 1836415, 2098760, 2570981, 2896880, 2938264, 3672830, 4197520, 5141962, 5876528, 7345660, 10283924, 12854905, 14691320, 20567848, 25709810, 29382640, 41135696, 51419620, 102839240, 205678480]

約数ペア:

[(1, 205678480), (2, 102839240), (4, 51419620), (5, 41135696), (7, 29382640), (8, 25709810), (10, 20567848), (14, 14691320), (16, 12854905), (20, 10283924), (28, 7345660), (35, 5876528), (40, 5141962), (49, 4197520), (56, 3672830), (70, 2938264), (71, 2896880), (80, 2570981), (98, 2098760), (112, 1836415), (140, 1469132), (142, 1448440), (196, 1049380), (245, 839504), (280, 734566), (284, 724220), (355, 579376), (392, 524690), (490, 419752), (497, 413840), (560, 367283), (568, 362110), (710, 289688), (739, 278320), (784, 262345), (980, 209876), (994, 206920), (1136, 181055), (1420, 144844), (1478, 139160), (1960, 104938), (1988, 103460), (2485, 82768), (2840, 72422), (2956, 69580), (3479, 59120), (3695, 55664), (3920, 52469), (3976, 51730), (4970, 41384), (5173, 39760), (5680, 36211), (5912, 34790), (6958, 29560), (7390, 27832), (7952, 25865), (9940, 20692), (10346, 19880), (11824, 17395), (13916, 14780)]