13660220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:339

約数の個数: 72

約数和(自身を含む): 34128864

約数和(自身を除く): 20468644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 53, 70, 98, 106, 140, 196, 212, 245, 263, 265, 371, 490, 526, 530, 742, 980, 1052, 1060, 1315, 1484, 1841, 1855, 2597, 2630, 3682, 3710, 5194, 5260, 7364, 7420, 9205, 10388, 12887, 12985, 13939, 18410, 25774, 25970, 27878, 36820, 51548, 51940, 55756, 64435, 69695, 97573, 128870, 139390, 195146, 257740, 278780, 390292, 487865, 683011, 975730, 1366022, 1951460, 2732044, 3415055, 6830110, 13660220]

約数ペア:

[(1, 13660220), (2, 6830110), (4, 3415055), (5, 2732044), (7, 1951460), (10, 1366022), (14, 975730), (20, 683011), (28, 487865), (35, 390292), (49, 278780), (53, 257740), (70, 195146), (98, 139390), (106, 128870), (140, 97573), (196, 69695), (212, 64435), (245, 55756), (263, 51940), (265, 51548), (371, 36820), (490, 27878), (526, 25970), (530, 25774), (742, 18410), (980, 13939), (1052, 12985), (1060, 12887), (1315, 10388), (1484, 9205), (1841, 7420), (1855, 7364), (2597, 5260), (2630, 5194), (3682, 3710)]