138875280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{578647}}^1$

素因数の和:578663

約数の個数: 40

約数和(自身を含む): 430514112

約数和(自身を除く): 291638832

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 578647, 1157294, 1735941, 2314588, 2893235, 3471882, 4629176, 5786470, 6943764, 8679705, 9258352, 11572940, 13887528, 17359410, 23145880, 27775056, 34718820, 46291760, 69437640, 138875280]

約数ペア:

[(1, 138875280), (2, 69437640), (3, 46291760), (4, 34718820), (5, 27775056), (6, 23145880), (8, 17359410), (10, 13887528), (12, 11572940), (15, 9258352), (16, 8679705), (20, 6943764), (24, 5786470), (30, 4629176), (40, 3471882), (48, 2893235), (60, 2314588), (80, 1735941), (120, 1157294), (240, 578647)]