399539840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{883}}^1$

素因数の和:1010

約数の個数: 128

約数和(自身を含む): 1103656320

約数和(自身を除く): 704116480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 101, 112, 128, 140, 160, 202, 224, 280, 320, 404, 448, 505, 560, 640, 707, 808, 883, 896, 1010, 1120, 1414, 1616, 1766, 2020, 2240, 2828, 3232, 3532, 3535, 4040, 4415, 4480, 5656, 6181, 6464, 7064, 7070, 8080, 8830, 11312, 12362, 12928, 14128, 14140, 16160, 17660, 22624, 24724, 28256, 28280, 30905, 32320, 35320, 45248, 49448, 56512, 56560, 61810, 64640, 70640, 89183, 90496, 98896, 113024, 113120, 123620, 141280, 178366, 197792, 226240, 247240, 282560, 356732, 395584, 445915, 452480, 494480, 565120, 624281, 713464, 791168, 891830, 988960, 1248562, 1426928, 1783660, 1977920, 2497124, 2853856, 3121405, 3567320, 3955840, 4994248, 5707712, 6242810, 7134640, 9988496, 11415424, 12485620, 14269280, 19976992, 24971240, 28538560, 39953984, 49942480, 57077120, 79907968, 99884960, 199769920, 399539840]

約数ペア:

[(1, 399539840), (2, 199769920), (4, 99884960), (5, 79907968), (7, 57077120), (8, 49942480), (10, 39953984), (14, 28538560), (16, 24971240), (20, 19976992), (28, 14269280), (32, 12485620), (35, 11415424), (40, 9988496), (56, 7134640), (64, 6242810), (70, 5707712), (80, 4994248), (101, 3955840), (112, 3567320), (128, 3121405), (140, 2853856), (160, 2497124), (202, 1977920), (224, 1783660), (280, 1426928), (320, 1248562), (404, 988960), (448, 891830), (505, 791168), (560, 713464), (640, 624281), (707, 565120), (808, 494480), (883, 452480), (896, 445915), (1010, 395584), (1120, 356732), (1414, 282560), (1616, 247240), (1766, 226240), (2020, 197792), (2240, 178366), (2828, 141280), (3232, 123620), (3532, 113120), (3535, 113024), (4040, 98896), (4415, 90496), (4480, 89183), (5656, 70640), (6181, 64640), (6464, 61810), (7064, 56560), (7070, 56512), (8080, 49448), (8830, 45248), (11312, 35320), (12362, 32320), (12928, 30905), (14128, 28280), (14140, 28256), (16160, 24724), (17660, 22624)]