20159320120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{213281}}^1$

素因数の和:213448

約数の個数: 64

約数和(自身を含む): 48372357600

約数和(自身を除く): 28213037480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 139, 170, 278, 340, 556, 680, 695, 1112, 1390, 2363, 2780, 4726, 5560, 9452, 11815, 18904, 23630, 47260, 94520, 213281, 426562, 853124, 1066405, 1706248, 2132810, 3625777, 4265620, 7251554, 8531240, 14503108, 18128885, 29006216, 29646059, 36257770, 59292118, 72515540, 118584236, 145031080, 148230295, 237168472, 296460590, 503983003, 592921180, 1007966006, 1185842360, 2015932012, 2519915015, 4031864024, 5039830030, 10079660060, 20159320120]

約数ペア:

[(1, 20159320120), (2, 10079660060), (4, 5039830030), (5, 4031864024), (8, 2519915015), (10, 2015932012), (17, 1185842360), (20, 1007966006), (34, 592921180), (40, 503983003), (68, 296460590), (85, 237168472), (136, 148230295), (139, 145031080), (170, 118584236), (278, 72515540), (340, 59292118), (556, 36257770), (680, 29646059), (695, 29006216), (1112, 18128885), (1390, 14503108), (2363, 8531240), (2780, 7251554), (4726, 4265620), (5560, 3625777), (9452, 2132810), (11815, 1706248), (18904, 1066405), (23630, 853124), (47260, 426562), (94520, 213281)]