128836720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{84761}}^1$

素因数の和:84793

約数の個数: 40

約数和(自身を含む): 315314640

約数和(自身を除く): 186477920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 84761, 169522, 339044, 423805, 678088, 847610, 1356176, 1610459, 1695220, 3220918, 3390440, 6441836, 6780880, 8052295, 12883672, 16104590, 25767344, 32209180, 64418360, 128836720]

約数ペア:

[(1, 128836720), (2, 64418360), (4, 32209180), (5, 25767344), (8, 16104590), (10, 12883672), (16, 8052295), (19, 6780880), (20, 6441836), (38, 3390440), (40, 3220918), (76, 1695220), (80, 1610459), (95, 1356176), (152, 847610), (190, 678088), (304, 423805), (380, 339044), (760, 169522), (1520, 84761)]