1388892170

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:447

約数の個数: 64

約数和(自身を含む): 2594592000

約数和(自身を除く): 1205699830

約数列:

[1, 2, 5, 10, 89, 103, 109, 139, 178, 206, 218, 278, 445, 515, 545, 695, 890, 1030, 1090, 1390, 9167, 9701, 11227, 12371, 14317, 15151, 18334, 19402, 22454, 24742, 28634, 30302, 45835, 48505, 56135, 61855, 71585, 75755, 91670, 97010, 112270, 123710, 143170, 151510, 999203, 1274213, 1348439, 1560553, 1998406, 2548426, 2696878, 3121106, 4996015, 6371065, 6742195, 7802765, 9992030, 12742130, 13484390, 15605530, 138889217, 277778434, 694446085, 1388892170]

約数ペア:

[(1, 1388892170), (2, 694446085), (5, 277778434), (10, 138889217), (89, 15605530), (103, 13484390), (109, 12742130), (139, 9992030), (178, 7802765), (206, 6742195), (218, 6371065), (278, 4996015), (445, 3121106), (515, 2696878), (545, 2548426), (695, 1998406), (890, 1560553), (1030, 1348439), (1090, 1274213), (1390, 999203), (9167, 151510), (9701, 143170), (11227, 123710), (12371, 112270), (14317, 97010), (15151, 91670), (18334, 75755), (19402, 71585), (22454, 61855), (24742, 56135), (28634, 48505), (30302, 45835)]