64801600

素因数分解:

$2^6\times 5^2\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:524

約数の個数: 84

約数和(自身を含む): 161432748

約数和(自身を除く): 96631148

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 101, 160, 200, 202, 320, 400, 401, 404, 505, 800, 802, 808, 1010, 1600, 1604, 1616, 2005, 2020, 2525, 3208, 3232, 4010, 4040, 5050, 6416, 6464, 8020, 8080, 10025, 10100, 12832, 16040, 16160, 20050, 20200, 25664, 32080, 32320, 40100, 40400, 40501, 64160, 80200, 80800, 81002, 128320, 160400, 161600, 162004, 202505, 320800, 324008, 405010, 641600, 648016, 810020, 1012525, 1296032, 1620040, 2025050, 2592064, 3240080, 4050100, 6480160, 8100200, 12960320, 16200400, 32400800, 64801600]

約数ペア:

[(1, 64801600), (2, 32400800), (4, 16200400), (5, 12960320), (8, 8100200), (10, 6480160), (16, 4050100), (20, 3240080), (25, 2592064), (32, 2025050), (40, 1620040), (50, 1296032), (64, 1012525), (80, 810020), (100, 648016), (101, 641600), (160, 405010), (200, 324008), (202, 320800), (320, 202505), (400, 162004), (401, 161600), (404, 160400), (505, 128320), (800, 81002), (802, 80800), (808, 80200), (1010, 64160), (1600, 40501), (1604, 40400), (1616, 40100), (2005, 32320), (2020, 32080), (2525, 25664), (3208, 20200), (3232, 20050), (4010, 16160), (4040, 16040), (5050, 12832), (6416, 10100), (6464, 10025), (8020, 8080)]