18774540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2819}}^1$

素因数の和:2871

約数の個数: 72

約数和(自身を含む): 58509360

約数和(自身を除く): 39734820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 2819, 3330, 5638, 6660, 8457, 11276, 14095, 16914, 25371, 28190, 33828, 42285, 50742, 56380, 84570, 101484, 104303, 126855, 169140, 208606, 253710, 312909, 417212, 507420, 521515, 625818, 938727, 1043030, 1251636, 1564545, 1877454, 2086060, 3129090, 3754908, 4693635, 6258180, 9387270, 18774540]

約数ペア:

[(1, 18774540), (2, 9387270), (3, 6258180), (4, 4693635), (5, 3754908), (6, 3129090), (9, 2086060), (10, 1877454), (12, 1564545), (15, 1251636), (18, 1043030), (20, 938727), (30, 625818), (36, 521515), (37, 507420), (45, 417212), (60, 312909), (74, 253710), (90, 208606), (111, 169140), (148, 126855), (180, 104303), (185, 101484), (222, 84570), (333, 56380), (370, 50742), (444, 42285), (555, 33828), (666, 28190), (740, 25371), (1110, 16914), (1332, 14095), (1665, 11276), (2220, 8457), (2819, 6660), (3330, 5638)]