261252180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{207343}}^1$

素因数の和:207365

約数の個数: 72

約数和(自身を含む): 905678592

約数和(自身を除く): 644426412

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, 207343, 414686, 622029, 829372, 1036715, 1244058, 1451401, 1866087, 2073430, 2488116, 2902802, 3110145, 3732174, 4146860, 4354203, 5805604, 6220290, 7257005, 7464348, 8708406, 9330435, 12440580, 13062609, 14514010, 17416812, 18660870, 21771015, 26125218, 29028020, 37321740, 43542030, 52250436, 65313045, 87084060, 130626090, 261252180]

約数ペア:

[(1, 261252180), (2, 130626090), (3, 87084060), (4, 65313045), (5, 52250436), (6, 43542030), (7, 37321740), (9, 29028020), (10, 26125218), (12, 21771015), (14, 18660870), (15, 17416812), (18, 14514010), (20, 13062609), (21, 12440580), (28, 9330435), (30, 8708406), (35, 7464348), (36, 7257005), (42, 6220290), (45, 5805604), (60, 4354203), (63, 4146860), (70, 3732174), (84, 3110145), (90, 2902802), (105, 2488116), (126, 2073430), (140, 1866087), (180, 1451401), (210, 1244058), (252, 1036715), (315, 829372), (420, 622029), (630, 414686), (1260, 207343)]