645645122

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1\times {\mathrm{509}}^1$

素因数の和:1082

約数の個数: 32

約数和(自身を含む): 1028160000

約数和(自身を除く): 382514878

約数列:

[1, 2, 31, 41, 62, 82, 499, 509, 998, 1018, 1271, 2542, 15469, 15779, 20459, 20869, 30938, 31558, 40918, 41738, 253991, 507982, 634229, 646939, 1268458, 1293878, 7873721, 10413631, 15747442, 20827262, 322822561, 645645122]

約数ペア:

[(1, 645645122), (2, 322822561), (31, 20827262), (41, 15747442), (62, 10413631), (82, 7873721), (499, 1293878), (509, 1268458), (998, 646939), (1018, 634229), (1271, 507982), (2542, 253991), (15469, 41738), (15779, 40918), (20459, 31558), (20869, 30938)]