15663476915

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1619}}^1\times {\mathrm{2647}}^1$

素因数の和:4331

約数の個数: 32

約数和(自身を含む): 20384939520

約数和(自身を除く): 4721462605

約数列:

[1, 5, 17, 43, 85, 215, 731, 1619, 2647, 3655, 8095, 13235, 27523, 44999, 69617, 113821, 137615, 224995, 348085, 569105, 1183489, 1934957, 4285493, 5917445, 9674785, 21427465, 72853381, 184276199, 364266905, 921380995, 3132695383, 15663476915]

約数ペア:

[(1, 15663476915), (5, 3132695383), (17, 921380995), (43, 364266905), (85, 184276199), (215, 72853381), (731, 21427465), (1619, 9674785), (2647, 5917445), (3655, 4285493), (8095, 1934957), (13235, 1183489), (27523, 569105), (44999, 348085), (69617, 224995), (113821, 137615)]