251211990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{601}}^1\times {\mathrm{13933}}^1$

素因数の和:14544

約数の個数: 32

約数和(自身を含む): 603955296

約数和(自身を除く): 352743306

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 601, 1202, 1803, 3005, 3606, 6010, 9015, 13933, 18030, 27866, 41799, 69665, 83598, 139330, 208995, 417990, 8373733, 16747466, 25121199, 41868665, 50242398, 83737330, 125605995, 251211990]

約数ペア:

[(1, 251211990), (2, 125605995), (3, 83737330), (5, 50242398), (6, 41868665), (10, 25121199), (15, 16747466), (30, 8373733), (601, 417990), (1202, 208995), (1803, 139330), (3005, 83598), (3606, 69665), (6010, 41799), (9015, 27866), (13933, 18030)]