128565540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1627}}^1$

素因数の和:2081

約数の個数: 72

約数和(自身を含む): 391110720

約数和(自身を除く): 262545180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 439, 878, 1317, 1627, 1756, 2195, 2634, 3254, 3951, 4390, 4881, 5268, 6508, 6585, 7902, 8135, 8780, 9762, 13170, 14643, 15804, 16270, 19524, 19755, 24405, 26340, 29286, 32540, 39510, 48810, 58572, 73215, 79020, 97620, 146430, 292860, 714253, 1428506, 2142759, 2857012, 3571265, 4285518, 6428277, 7142530, 8571036, 10713795, 12856554, 14285060, 21427590, 25713108, 32141385, 42855180, 64282770, 128565540]

約数ペア:

[(1, 128565540), (2, 64282770), (3, 42855180), (4, 32141385), (5, 25713108), (6, 21427590), (9, 14285060), (10, 12856554), (12, 10713795), (15, 8571036), (18, 7142530), (20, 6428277), (30, 4285518), (36, 3571265), (45, 2857012), (60, 2142759), (90, 1428506), (180, 714253), (439, 292860), (878, 146430), (1317, 97620), (1627, 79020), (1756, 73215), (2195, 58572), (2634, 48810), (3254, 39510), (3951, 32540), (4390, 29286), (4881, 26340), (5268, 24405), (6508, 19755), (6585, 19524), (7902, 16270), (8135, 15804), (8780, 14643), (9762, 13170)]