12988220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{821}}^1$

素因数の和:950

約数の個数: 48

約数和(自身を含む): 31485888

約数和(自身を除く): 18497668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 113, 140, 226, 452, 565, 791, 821, 1130, 1582, 1642, 2260, 3164, 3284, 3955, 4105, 5747, 7910, 8210, 11494, 15820, 16420, 22988, 28735, 57470, 92773, 114940, 185546, 371092, 463865, 649411, 927730, 1298822, 1855460, 2597644, 3247055, 6494110, 12988220]

約数ペア:

[(1, 12988220), (2, 6494110), (4, 3247055), (5, 2597644), (7, 1855460), (10, 1298822), (14, 927730), (20, 649411), (28, 463865), (35, 371092), (70, 185546), (113, 114940), (140, 92773), (226, 57470), (452, 28735), (565, 22988), (791, 16420), (821, 15820), (1130, 11494), (1582, 8210), (1642, 7910), (2260, 5747), (3164, 4105), (3284, 3955)]