155489320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{1091}}^1$

素因数の和:1618

約数の個数: 64

約数和(自身を含む): 400982400

約数和(自身を除く): 245493080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 509, 1018, 1091, 2036, 2182, 2545, 3563, 4072, 4364, 5090, 5455, 7126, 7637, 8728, 10180, 10910, 14252, 15274, 17815, 20360, 21820, 28504, 30548, 35630, 38185, 43640, 61096, 71260, 76370, 142520, 152740, 305480, 555319, 1110638, 2221276, 2776595, 3887233, 4442552, 5553190, 7774466, 11106380, 15548932, 19436165, 22212760, 31097864, 38872330, 77744660, 155489320]

約数ペア:

[(1, 155489320), (2, 77744660), (4, 38872330), (5, 31097864), (7, 22212760), (8, 19436165), (10, 15548932), (14, 11106380), (20, 7774466), (28, 5553190), (35, 4442552), (40, 3887233), (56, 2776595), (70, 2221276), (140, 1110638), (280, 555319), (509, 305480), (1018, 152740), (1091, 142520), (2036, 76370), (2182, 71260), (2545, 61096), (3563, 43640), (4072, 38185), (4364, 35630), (5090, 30548), (5455, 28504), (7126, 21820), (7637, 20360), (8728, 17815), (10180, 15274), (10910, 14252)]