18525420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1019}}^1$

素因数の和:1135

約数の個数: 72

約数和(自身を含む): 56805840

約数和(自身を除く): 38280420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1019, 1212, 1515, 1818, 2020, 2038, 3030, 3057, 3636, 4076, 4545, 5095, 6060, 6114, 9090, 9171, 10190, 12228, 15285, 18180, 18342, 20380, 30570, 36684, 45855, 61140, 91710, 102919, 183420, 205838, 308757, 411676, 514595, 617514, 926271, 1029190, 1235028, 1543785, 1852542, 2058380, 3087570, 3705084, 4631355, 6175140, 9262710, 18525420]

約数ペア:

[(1, 18525420), (2, 9262710), (3, 6175140), (4, 4631355), (5, 3705084), (6, 3087570), (9, 2058380), (10, 1852542), (12, 1543785), (15, 1235028), (18, 1029190), (20, 926271), (30, 617514), (36, 514595), (45, 411676), (60, 308757), (90, 205838), (101, 183420), (180, 102919), (202, 91710), (303, 61140), (404, 45855), (505, 36684), (606, 30570), (909, 20380), (1010, 18342), (1019, 18180), (1212, 15285), (1515, 12228), (1818, 10190), (2020, 9171), (2038, 9090), (3030, 6114), (3057, 6060), (3636, 5095), (4076, 4545)]