19924870

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 43228800

約数和(自身を除く): 23303930

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 49, 70, 74, 98, 157, 185, 245, 259, 314, 343, 370, 490, 518, 686, 785, 1099, 1295, 1570, 1715, 1813, 2198, 2590, 3430, 3626, 5495, 5809, 7693, 9065, 10990, 11618, 12691, 15386, 18130, 25382, 29045, 38465, 40663, 53851, 58090, 63455, 76930, 81326, 107702, 126910, 203315, 269255, 284641, 406630, 538510, 569282, 1423205, 1992487, 2846410, 3984974, 9962435, 19924870]

約数ペア:

[(1, 19924870), (2, 9962435), (5, 3984974), (7, 2846410), (10, 1992487), (14, 1423205), (35, 569282), (37, 538510), (49, 406630), (70, 284641), (74, 269255), (98, 203315), (157, 126910), (185, 107702), (245, 81326), (259, 76930), (314, 63455), (343, 58090), (370, 53851), (490, 40663), (518, 38465), (686, 29045), (785, 25382), (1099, 18130), (1295, 15386), (1570, 12691), (1715, 11618), (1813, 10990), (2198, 9065), (2590, 7693), (3430, 5809), (3626, 5495)]