19861560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{55171}}^1$

素因数の和:55188

約数の個数: 48

約数和(自身を含む): 64551240

約数和(自身を除く): 44689680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 55171, 110342, 165513, 220684, 275855, 331026, 441368, 496539, 551710, 662052, 827565, 993078, 1103420, 1324104, 1655130, 1986156, 2206840, 2482695, 3310260, 3972312, 4965390, 6620520, 9930780, 19861560]

約数ペア:

[(1, 19861560), (2, 9930780), (3, 6620520), (4, 4965390), (5, 3972312), (6, 3310260), (8, 2482695), (9, 2206840), (10, 1986156), (12, 1655130), (15, 1324104), (18, 1103420), (20, 993078), (24, 827565), (30, 662052), (36, 551710), (40, 496539), (45, 441368), (60, 331026), (72, 275855), (90, 220684), (120, 165513), (180, 110342), (360, 55171)]