19913580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{36877}}^1$

素因数の和:36895

約数の個数: 48

約数和(自身を含む): 61955040

約数和(自身を除く): 42041460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 36877, 73754, 110631, 147508, 184385, 221262, 331893, 368770, 442524, 553155, 663786, 737540, 995679, 1106310, 1327572, 1659465, 1991358, 2212620, 3318930, 3982716, 4978395, 6637860, 9956790, 19913580]

約数ペア:

[(1, 19913580), (2, 9956790), (3, 6637860), (4, 4978395), (5, 3982716), (6, 3318930), (9, 2212620), (10, 1991358), (12, 1659465), (15, 1327572), (18, 1106310), (20, 995679), (27, 737540), (30, 663786), (36, 553155), (45, 442524), (54, 368770), (60, 331893), (90, 221262), (108, 184385), (135, 147508), (180, 110631), (270, 73754), (540, 36877)]