219932020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{12983}}^1$

素因数の和:13021

約数の個数: 72

約数和(自身を含む): 580228992

約数和(自身を除く): 360296972

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1210, 1540, 1694, 2420, 3388, 4235, 8470, 12983, 16940, 25966, 51932, 64915, 90881, 129830, 142813, 181762, 259660, 285626, 363524, 454405, 571252, 714065, 908810, 999691, 1428130, 1570943, 1817620, 1999382, 2856260, 3141886, 3998764, 4998455, 6283772, 7854715, 9996910, 10996601, 15709430, 19993820, 21993202, 31418860, 43986404, 54983005, 109966010, 219932020]

約数ペア:

[(1, 219932020), (2, 109966010), (4, 54983005), (5, 43986404), (7, 31418860), (10, 21993202), (11, 19993820), (14, 15709430), (20, 10996601), (22, 9996910), (28, 7854715), (35, 6283772), (44, 4998455), (55, 3998764), (70, 3141886), (77, 2856260), (110, 1999382), (121, 1817620), (140, 1570943), (154, 1428130), (220, 999691), (242, 908810), (308, 714065), (385, 571252), (484, 454405), (605, 363524), (770, 285626), (847, 259660), (1210, 181762), (1540, 142813), (1694, 129830), (2420, 90881), (3388, 64915), (4235, 51932), (8470, 25966), (12983, 16940)]