20965600

素因数分解:

$2^5\times 5^2\times {\mathrm{73}}^1\times {\mathrm{359}}^1$

素因数の和:452

約数の個数: 72

約数和(自身を含む): 52027920

約数和(自身を除く): 31062320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 73, 80, 100, 146, 160, 200, 292, 359, 365, 400, 584, 718, 730, 800, 1168, 1436, 1460, 1795, 1825, 2336, 2872, 2920, 3590, 3650, 5744, 5840, 7180, 7300, 8975, 11488, 11680, 14360, 14600, 17950, 26207, 28720, 29200, 35900, 52414, 57440, 58400, 71800, 104828, 131035, 143600, 209656, 262070, 287200, 419312, 524140, 655175, 838624, 1048280, 1310350, 2096560, 2620700, 4193120, 5241400, 10482800, 20965600]

約数ペア:

[(1, 20965600), (2, 10482800), (4, 5241400), (5, 4193120), (8, 2620700), (10, 2096560), (16, 1310350), (20, 1048280), (25, 838624), (32, 655175), (40, 524140), (50, 419312), (73, 287200), (80, 262070), (100, 209656), (146, 143600), (160, 131035), (200, 104828), (292, 71800), (359, 58400), (365, 57440), (400, 52414), (584, 35900), (718, 29200), (730, 28720), (800, 26207), (1168, 17950), (1436, 14600), (1460, 14360), (1795, 11680), (1825, 11488), (2336, 8975), (2872, 7300), (2920, 7180), (3590, 5840), (3650, 5744)]