20417220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3659}}^1$

素因数の和:3705

約数の個数: 72

約数和(自身を含む): 63947520

約数和(自身を除く): 43530300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 3659, 5580, 7318, 10977, 14636, 18295, 21954, 32931, 36590, 43908, 54885, 65862, 73180, 109770, 113429, 131724, 164655, 219540, 226858, 329310, 340287, 453716, 567145, 658620, 680574, 1020861, 1134290, 1361148, 1701435, 2041722, 2268580, 3402870, 4083444, 5104305, 6805740, 10208610, 20417220]

約数ペア:

[(1, 20417220), (2, 10208610), (3, 6805740), (4, 5104305), (5, 4083444), (6, 3402870), (9, 2268580), (10, 2041722), (12, 1701435), (15, 1361148), (18, 1134290), (20, 1020861), (30, 680574), (31, 658620), (36, 567145), (45, 453716), (60, 340287), (62, 329310), (90, 226858), (93, 219540), (124, 164655), (155, 131724), (180, 113429), (186, 109770), (279, 73180), (310, 65862), (372, 54885), (465, 43908), (558, 36590), (620, 32931), (930, 21954), (1116, 18295), (1395, 14636), (1860, 10977), (2790, 7318), (3659, 5580)]