78756470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{1439}}^1$

素因数の和:1880

約数の個数: 32

約数和(自身を含む): 153135360

約数和(自身を除く): 74378890

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 421, 842, 1439, 2105, 2878, 4210, 5473, 7195, 10946, 14390, 18707, 27365, 37414, 54730, 93535, 187070, 605819, 1211638, 3029095, 6058190, 7875647, 15751294, 39378235, 78756470]

約数ペア:

[(1, 78756470), (2, 39378235), (5, 15751294), (10, 7875647), (13, 6058190), (26, 3029095), (65, 1211638), (130, 605819), (421, 187070), (842, 93535), (1439, 54730), (2105, 37414), (2878, 27365), (4210, 18707), (5473, 14390), (7195, 10946)]