20322820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8539}}^1$

素因数の和:8572

約数の個数: 48

約数和(自身を含む): 51649920

約数和(自身を除く): 31327100

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 8539, 17078, 34156, 42695, 59773, 85390, 119546, 145163, 170780, 239092, 290326, 298865, 580652, 597730, 725815, 1016141, 1195460, 1451630, 2032282, 2903260, 4064564, 5080705, 10161410, 20322820]

約数ペア:

[(1, 20322820), (2, 10161410), (4, 5080705), (5, 4064564), (7, 2903260), (10, 2032282), (14, 1451630), (17, 1195460), (20, 1016141), (28, 725815), (34, 597730), (35, 580652), (68, 298865), (70, 290326), (85, 239092), (119, 170780), (140, 145163), (170, 119546), (238, 85390), (340, 59773), (476, 42695), (595, 34156), (1190, 17078), (2380, 8539)]