688049090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{439}}^1$

素因数の和:651

約数の個数: 64

約数和(自身を含む): 1336262400

約数和(自身を除く): 648213310

約数列:

[1, 2, 5, 10, 19, 38, 73, 95, 113, 146, 190, 226, 365, 439, 565, 730, 878, 1130, 1387, 2147, 2195, 2774, 4294, 4390, 6935, 8249, 8341, 10735, 13870, 16498, 16682, 21470, 32047, 41245, 41705, 49607, 64094, 82490, 83410, 99214, 156731, 160235, 248035, 313462, 320470, 496070, 608893, 783655, 942533, 1217786, 1567310, 1885066, 3044465, 3621311, 4712665, 6088930, 7242622, 9425330, 18106555, 36213110, 68804909, 137609818, 344024545, 688049090]

約数ペア:

[(1, 688049090), (2, 344024545), (5, 137609818), (10, 68804909), (19, 36213110), (38, 18106555), (73, 9425330), (95, 7242622), (113, 6088930), (146, 4712665), (190, 3621311), (226, 3044465), (365, 1885066), (439, 1567310), (565, 1217786), (730, 942533), (878, 783655), (1130, 608893), (1387, 496070), (2147, 320470), (2195, 313462), (2774, 248035), (4294, 160235), (4390, 156731), (6935, 99214), (8249, 83410), (8341, 82490), (10735, 64094), (13870, 49607), (16498, 41705), (16682, 41245), (21470, 32047)]