65684420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1\times {\mathrm{421}}^1$

素因数の和:728

約数の個数: 48

約数和(自身を含む): 143564400

約数和(自身を除く): 77879980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 269, 290, 421, 538, 580, 842, 1076, 1345, 1684, 2105, 2690, 4210, 5380, 7801, 8420, 12209, 15602, 24418, 31204, 39005, 48836, 61045, 78010, 113249, 122090, 156020, 226498, 244180, 452996, 566245, 1132490, 2264980, 3284221, 6568442, 13136884, 16421105, 32842210, 65684420]

約数ペア:

[(1, 65684420), (2, 32842210), (4, 16421105), (5, 13136884), (10, 6568442), (20, 3284221), (29, 2264980), (58, 1132490), (116, 566245), (145, 452996), (269, 244180), (290, 226498), (421, 156020), (538, 122090), (580, 113249), (842, 78010), (1076, 61045), (1345, 48836), (1684, 39005), (2105, 31204), (2690, 24418), (4210, 15602), (5380, 12209), (7801, 8420)]