214425820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{20981}}^1$

素因数の和:21070

約数の個数: 48

約数和(自身を含む): 521696448

約数和(自身を除く): 307270628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2044, 2555, 5110, 10220, 20981, 41962, 83924, 104905, 146867, 209810, 293734, 419620, 587468, 734335, 1468670, 1531613, 2937340, 3063226, 6126452, 7658065, 10721291, 15316130, 21442582, 30632260, 42885164, 53606455, 107212910, 214425820]

約数ペア:

[(1, 214425820), (2, 107212910), (4, 53606455), (5, 42885164), (7, 30632260), (10, 21442582), (14, 15316130), (20, 10721291), (28, 7658065), (35, 6126452), (70, 3063226), (73, 2937340), (140, 1531613), (146, 1468670), (292, 734335), (365, 587468), (511, 419620), (730, 293734), (1022, 209810), (1460, 146867), (2044, 104905), (2555, 83924), (5110, 41962), (10220, 20981)]