681001520

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{57131}}^1$

素因数の和:57293

約数の個数: 40

約数和(自身を含む): 1593982800

約数和(自身を除く): 912981280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2980, 5960, 11920, 57131, 114262, 228524, 285655, 457048, 571310, 914096, 1142620, 2285240, 4570480, 8512519, 17025038, 34050076, 42562595, 68100152, 85125190, 136200304, 170250380, 340500760, 681001520]

約数ペア:

[(1, 681001520), (2, 340500760), (4, 170250380), (5, 136200304), (8, 85125190), (10, 68100152), (16, 42562595), (20, 34050076), (40, 17025038), (80, 8512519), (149, 4570480), (298, 2285240), (596, 1142620), (745, 914096), (1192, 571310), (1490, 457048), (2384, 285655), (2980, 228524), (5960, 114262), (11920, 57131)]