31140320

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:204

約数の個数: 96

約数和(自身を含む): 77728896

約数和(自身を除く): 46588576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 47, 80, 82, 94, 101, 160, 164, 188, 202, 205, 235, 328, 376, 404, 410, 470, 505, 656, 752, 808, 820, 940, 1010, 1312, 1504, 1616, 1640, 1880, 1927, 2020, 3232, 3280, 3760, 3854, 4040, 4141, 4747, 6560, 7520, 7708, 8080, 8282, 9494, 9635, 15416, 16160, 16564, 18988, 19270, 20705, 23735, 30832, 33128, 37976, 38540, 41410, 47470, 61664, 66256, 75952, 77080, 82820, 94940, 132512, 151904, 154160, 165640, 189880, 194627, 308320, 331280, 379760, 389254, 662560, 759520, 778508, 973135, 1557016, 1946270, 3114032, 3892540, 6228064, 7785080, 15570160, 31140320]

約数ペア:

[(1, 31140320), (2, 15570160), (4, 7785080), (5, 6228064), (8, 3892540), (10, 3114032), (16, 1946270), (20, 1557016), (32, 973135), (40, 778508), (41, 759520), (47, 662560), (80, 389254), (82, 379760), (94, 331280), (101, 308320), (160, 194627), (164, 189880), (188, 165640), (202, 154160), (205, 151904), (235, 132512), (328, 94940), (376, 82820), (404, 77080), (410, 75952), (470, 66256), (505, 61664), (656, 47470), (752, 41410), (808, 38540), (820, 37976), (940, 33128), (1010, 30832), (1312, 23735), (1504, 20705), (1616, 19270), (1640, 18988), (1880, 16564), (1927, 16160), (2020, 15416), (3232, 9635), (3280, 9494), (3760, 8282), (3854, 8080), (4040, 7708), (4141, 7520), (4747, 6560)]