18914030

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 38610432

約数和(自身を除く): 19696402

約数列:

[1, 2, 5, 10, 17, 31, 34, 37, 62, 74, 85, 97, 155, 170, 185, 194, 310, 370, 485, 527, 629, 970, 1054, 1147, 1258, 1649, 2294, 2635, 3007, 3145, 3298, 3589, 5270, 5735, 6014, 6290, 7178, 8245, 11470, 15035, 16490, 17945, 19499, 30070, 35890, 38998, 51119, 61013, 97495, 102238, 111259, 122026, 194990, 222518, 255595, 305065, 511190, 556295, 610130, 1112590, 1891403, 3782806, 9457015, 18914030]

約数ペア:

[(1, 18914030), (2, 9457015), (5, 3782806), (10, 1891403), (17, 1112590), (31, 610130), (34, 556295), (37, 511190), (62, 305065), (74, 255595), (85, 222518), (97, 194990), (155, 122026), (170, 111259), (185, 102238), (194, 97495), (310, 61013), (370, 51119), (485, 38998), (527, 35890), (629, 30070), (970, 19499), (1054, 17945), (1147, 16490), (1258, 15035), (1649, 11470), (2294, 8245), (2635, 7178), (3007, 6290), (3145, 6014), (3298, 5735), (3589, 5270)]