720764560

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{134471}}^1$

素因数の和:134551

約数の個数: 40

約数和(自身を含む): 1700801856

約数和(自身を除く): 980037296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 134471, 268942, 537884, 672355, 1075768, 1344710, 2151536, 2689420, 5378840, 9009557, 10757680, 18019114, 36038228, 45047785, 72076456, 90095570, 144152912, 180191140, 360382280, 720764560]

約数ペア:

[(1, 720764560), (2, 360382280), (4, 180191140), (5, 144152912), (8, 90095570), (10, 72076456), (16, 45047785), (20, 36038228), (40, 18019114), (67, 10757680), (80, 9009557), (134, 5378840), (268, 2689420), (335, 2151536), (536, 1344710), (670, 1075768), (1072, 672355), (1340, 537884), (2680, 268942), (5360, 134471)]