28561240

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{3989}}^1$

素因数の和:4179

約数の個数: 32

約数和(自身を含む): 64638000

約数和(自身を除く): 36076760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 3580, 3989, 7160, 7978, 15956, 19945, 31912, 39890, 79780, 159560, 714031, 1428062, 2856124, 3570155, 5712248, 7140310, 14280620, 28561240]

約数ペア:

[(1, 28561240), (2, 14280620), (4, 7140310), (5, 5712248), (8, 3570155), (10, 2856124), (20, 1428062), (40, 714031), (179, 159560), (358, 79780), (716, 39890), (895, 31912), (1432, 19945), (1790, 15956), (3580, 7978), (3989, 7160)]