19705460

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{859}}^1$

素因数の和:936

約数の個数: 48

約数和(自身を含む): 43921920

約数和(自身を除く): 24216460

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 370, 620, 740, 859, 1147, 1718, 2294, 3436, 4295, 4588, 5735, 8590, 11470, 17180, 22940, 26629, 31783, 53258, 63566, 106516, 127132, 133145, 158915, 266290, 317830, 532580, 635660, 985273, 1970546, 3941092, 4926365, 9852730, 19705460]

約数ペア:

[(1, 19705460), (2, 9852730), (4, 4926365), (5, 3941092), (10, 1970546), (20, 985273), (31, 635660), (37, 532580), (62, 317830), (74, 266290), (124, 158915), (148, 133145), (155, 127132), (185, 106516), (310, 63566), (370, 53258), (620, 31783), (740, 26629), (859, 22940), (1147, 17180), (1718, 11470), (2294, 8590), (3436, 5735), (4295, 4588)]