1388970010

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:535

約数の個数: 64

約数和(自身を含む): 2619993600

約数和(自身を除く): 1231023590

約数列:

[1, 2, 5, 10, 37, 74, 113, 139, 185, 226, 239, 278, 370, 478, 565, 695, 1130, 1195, 1390, 2390, 4181, 5143, 8362, 8843, 10286, 15707, 17686, 20905, 25715, 27007, 31414, 33221, 41810, 44215, 51430, 54014, 66442, 78535, 88430, 135035, 157070, 166105, 270070, 332210, 581159, 999259, 1162318, 1229177, 1998518, 2458354, 2905795, 3753973, 4996295, 5811590, 6145885, 7507946, 9992590, 12291770, 18769865, 37539730, 138897001, 277794002, 694485005, 1388970010]

約数ペア:

[(1, 1388970010), (2, 694485005), (5, 277794002), (10, 138897001), (37, 37539730), (74, 18769865), (113, 12291770), (139, 9992590), (185, 7507946), (226, 6145885), (239, 5811590), (278, 4996295), (370, 3753973), (478, 2905795), (565, 2458354), (695, 1998518), (1130, 1229177), (1195, 1162318), (1390, 999259), (2390, 581159), (4181, 332210), (5143, 270070), (8362, 166105), (8843, 157070), (10286, 135035), (15707, 88430), (17686, 78535), (20905, 66442), (25715, 54014), (27007, 51430), (31414, 44215), (33221, 41810)]