81533340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{64709}}^1$

素因数の和:64731

約数の個数: 72

約数和(自身を含む): 282653280

約数和(自身を除く): 201119940

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 64709, 129418, 194127, 258836, 323545, 388254, 452963, 582381, 647090, 776508, 905926, 970635, 1164762, 1294180, 1358889, 1811852, 1941270, 2264815, 2329524, 2717778, 2911905, 3882540, 4076667, 4529630, 5435556, 5823810, 6794445, 8153334, 9059260, 11647620, 13588890, 16306668, 20383335, 27177780, 40766670, 81533340]

約数ペア:

[(1, 81533340), (2, 40766670), (3, 27177780), (4, 20383335), (5, 16306668), (6, 13588890), (7, 11647620), (9, 9059260), (10, 8153334), (12, 6794445), (14, 5823810), (15, 5435556), (18, 4529630), (20, 4076667), (21, 3882540), (28, 2911905), (30, 2717778), (35, 2329524), (36, 2264815), (42, 1941270), (45, 1811852), (60, 1358889), (63, 1294180), (70, 1164762), (84, 970635), (90, 905926), (105, 776508), (126, 647090), (140, 582381), (180, 452963), (210, 388254), (252, 323545), (315, 258836), (420, 194127), (630, 129418), (1260, 64709)]