19897200

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{5527}}^1$

素因数の和:5551

約数の個数: 90

約数和(自身を含む): 69061304

約数和(自身を除く): 49164104

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 100, 120, 144, 150, 180, 200, 225, 240, 300, 360, 400, 450, 600, 720, 900, 1200, 1800, 3600, 5527, 11054, 16581, 22108, 27635, 33162, 44216, 49743, 55270, 66324, 82905, 88432, 99486, 110540, 132648, 138175, 165810, 198972, 221080, 248715, 265296, 276350, 331620, 397944, 414525, 442160, 497430, 552700, 663240, 795888, 829050, 994860, 1105400, 1243575, 1326480, 1658100, 1989720, 2210800, 2487150, 3316200, 3979440, 4974300, 6632400, 9948600, 19897200]

約数ペア:

[(1, 19897200), (2, 9948600), (3, 6632400), (4, 4974300), (5, 3979440), (6, 3316200), (8, 2487150), (9, 2210800), (10, 1989720), (12, 1658100), (15, 1326480), (16, 1243575), (18, 1105400), (20, 994860), (24, 829050), (25, 795888), (30, 663240), (36, 552700), (40, 497430), (45, 442160), (48, 414525), (50, 397944), (60, 331620), (72, 276350), (75, 265296), (80, 248715), (90, 221080), (100, 198972), (120, 165810), (144, 138175), (150, 132648), (180, 110540), (200, 99486), (225, 88432), (240, 82905), (300, 66324), (360, 55270), (400, 49743), (450, 44216), (600, 33162), (720, 27635), (900, 22108), (1200, 16581), (1800, 11054), (3600, 5527)]