15228220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{379}}^1$

素因数の和:443

約数の個数: 72

約数和(自身を含む): 38208240

約数和(自身を除く): 22980020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 379, 410, 490, 574, 758, 820, 980, 1148, 1435, 1516, 1895, 2009, 2653, 2870, 3790, 4018, 5306, 5740, 7580, 8036, 10045, 10612, 13265, 15539, 18571, 20090, 26530, 31078, 37142, 40180, 53060, 62156, 74284, 77695, 92855, 108773, 155390, 185710, 217546, 310780, 371420, 435092, 543865, 761411, 1087730, 1522822, 2175460, 3045644, 3807055, 7614110, 15228220]

約数ペア:

[(1, 15228220), (2, 7614110), (4, 3807055), (5, 3045644), (7, 2175460), (10, 1522822), (14, 1087730), (20, 761411), (28, 543865), (35, 435092), (41, 371420), (49, 310780), (70, 217546), (82, 185710), (98, 155390), (140, 108773), (164, 92855), (196, 77695), (205, 74284), (245, 62156), (287, 53060), (379, 40180), (410, 37142), (490, 31078), (574, 26530), (758, 20090), (820, 18571), (980, 15539), (1148, 13265), (1435, 10612), (1516, 10045), (1895, 8036), (2009, 7580), (2653, 5740), (2870, 5306), (3790, 4018)]