20181253428

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{3821}}^1\times {\mathrm{20959}}^1$

素因数の和:24797

約数の個数: 72

約数和(自身を含む): 58319439360

約数和(自身を除く): 38138185932

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 3821, 7642, 11463, 15284, 20959, 22926, 26747, 34389, 41918, 45852, 53494, 62877, 68778, 80241, 83836, 106988, 125754, 137556, 146713, 160482, 188631, 240723, 251508, 293426, 320964, 377262, 440139, 481446, 586852, 754524, 880278, 962892, 1320417, 1760556, 2640834, 5281668, 80084339, 160168678, 240253017, 320337356, 480506034, 560590373, 720759051, 961012068, 1121180746, 1441518102, 1681771119, 2242361492, 2883036204, 3363542238, 5045313357, 6727084476, 10090626714, 20181253428]

約数ペア:

[(1, 20181253428), (2, 10090626714), (3, 6727084476), (4, 5045313357), (6, 3363542238), (7, 2883036204), (9, 2242361492), (12, 1681771119), (14, 1441518102), (18, 1121180746), (21, 961012068), (28, 720759051), (36, 560590373), (42, 480506034), (63, 320337356), (84, 240253017), (126, 160168678), (252, 80084339), (3821, 5281668), (7642, 2640834), (11463, 1760556), (15284, 1320417), (20959, 962892), (22926, 880278), (26747, 754524), (34389, 586852), (41918, 481446), (45852, 440139), (53494, 377262), (62877, 320964), (68778, 293426), (80241, 251508), (83836, 240723), (106988, 188631), (125754, 160482), (137556, 146713)]