81019260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{64301}}^1$

素因数の和:64323

約数の個数: 72

約数和(自身を含む): 280871136

約数和(自身を除く): 199851876

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, 64301, 128602, 192903, 257204, 321505, 385806, 450107, 578709, 643010, 771612, 900214, 964515, 1157418, 1286020, 1350321, 1800428, 1929030, 2250535, 2314836, 2700642, 2893545, 3858060, 4050963, 4501070, 5401284, 5787090, 6751605, 8101926, 9002140, 11574180, 13503210, 16203852, 20254815, 27006420, 40509630, 81019260]

約数ペア:

[(1, 81019260), (2, 40509630), (3, 27006420), (4, 20254815), (5, 16203852), (6, 13503210), (7, 11574180), (9, 9002140), (10, 8101926), (12, 6751605), (14, 5787090), (15, 5401284), (18, 4501070), (20, 4050963), (21, 3858060), (28, 2893545), (30, 2700642), (35, 2314836), (36, 2250535), (42, 1929030), (45, 1800428), (60, 1350321), (63, 1286020), (70, 1157418), (84, 964515), (90, 900214), (105, 771612), (126, 643010), (140, 578709), (180, 450107), (210, 385806), (252, 321505), (315, 257204), (420, 192903), (630, 128602), (1260, 64301)]