289089880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{6301}}^1$

素因数の和:6380

約数の個数: 64

約数和(自身を含む): 689690880

約数和(自身を除く): 400601000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 620, 740, 1147, 1240, 1480, 2294, 4588, 5735, 6301, 9176, 11470, 12602, 22940, 25204, 31505, 45880, 50408, 63010, 126020, 195331, 233137, 252040, 390662, 466274, 781324, 932548, 976655, 1165685, 1562648, 1865096, 1953310, 2331370, 3906620, 4662740, 7227247, 7813240, 9325480, 14454494, 28908988, 36136235, 57817976, 72272470, 144544940, 289089880]

約数ペア:

[(1, 289089880), (2, 144544940), (4, 72272470), (5, 57817976), (8, 36136235), (10, 28908988), (20, 14454494), (31, 9325480), (37, 7813240), (40, 7227247), (62, 4662740), (74, 3906620), (124, 2331370), (148, 1953310), (155, 1865096), (185, 1562648), (248, 1165685), (296, 976655), (310, 932548), (370, 781324), (620, 466274), (740, 390662), (1147, 252040), (1240, 233137), (1480, 195331), (2294, 126020), (4588, 63010), (5735, 50408), (6301, 45880), (9176, 31505), (11470, 25204), (12602, 22940)]