80956400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{997}}^1$

素因数の和:1051

約数の個数: 120

約数和(自身を含む): 230178720

約数和(自身を除く): 149222320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 29, 35, 40, 50, 56, 58, 70, 80, 100, 112, 116, 140, 145, 175, 200, 203, 232, 280, 290, 350, 400, 406, 464, 560, 580, 700, 725, 812, 997, 1015, 1160, 1400, 1450, 1624, 1994, 2030, 2320, 2800, 2900, 3248, 3988, 4060, 4985, 5075, 5800, 6979, 7976, 8120, 9970, 10150, 11600, 13958, 15952, 16240, 19940, 20300, 24925, 27916, 28913, 34895, 39880, 40600, 49850, 55832, 57826, 69790, 79760, 81200, 99700, 111664, 115652, 139580, 144565, 174475, 199400, 202391, 231304, 279160, 289130, 348950, 398800, 404782, 462608, 558320, 578260, 697900, 722825, 809564, 1011955, 1156520, 1395800, 1445650, 1619128, 2023910, 2313040, 2791600, 2891300, 3238256, 4047820, 5059775, 5782600, 8095640, 10119550, 11565200, 16191280, 20239100, 40478200, 80956400]

約数ペア:

[(1, 80956400), (2, 40478200), (4, 20239100), (5, 16191280), (7, 11565200), (8, 10119550), (10, 8095640), (14, 5782600), (16, 5059775), (20, 4047820), (25, 3238256), (28, 2891300), (29, 2791600), (35, 2313040), (40, 2023910), (50, 1619128), (56, 1445650), (58, 1395800), (70, 1156520), (80, 1011955), (100, 809564), (112, 722825), (116, 697900), (140, 578260), (145, 558320), (175, 462608), (200, 404782), (203, 398800), (232, 348950), (280, 289130), (290, 279160), (350, 231304), (400, 202391), (406, 199400), (464, 174475), (560, 144565), (580, 139580), (700, 115652), (725, 111664), (812, 99700), (997, 81200), (1015, 79760), (1160, 69790), (1400, 57826), (1450, 55832), (1624, 49850), (1994, 40600), (2030, 39880), (2320, 34895), (2800, 28913), (2900, 27916), (3248, 24925), (3988, 20300), (4060, 19940), (4985, 16240), (5075, 15952), (5800, 13958), (6979, 11600), (7976, 10150), (8120, 9970)]