883125640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1\times {\mathrm{691}}^1$

素因数の和:1150

約数の個数: 64

約数和(自身を含む): 2017872000

約数和(自身を除く): 1134746360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 359, 445, 691, 712, 718, 890, 1382, 1436, 1780, 1795, 2764, 2872, 3455, 3560, 3590, 5528, 6910, 7180, 13820, 14360, 27640, 31951, 61499, 63902, 122998, 127804, 159755, 245996, 248069, 255608, 307495, 319510, 491992, 496138, 614990, 639020, 992276, 1229980, 1240345, 1278040, 1984552, 2459960, 2480690, 4961380, 9922760, 22078141, 44156282, 88312564, 110390705, 176625128, 220781410, 441562820, 883125640]

約数ペア:

[(1, 883125640), (2, 441562820), (4, 220781410), (5, 176625128), (8, 110390705), (10, 88312564), (20, 44156282), (40, 22078141), (89, 9922760), (178, 4961380), (356, 2480690), (359, 2459960), (445, 1984552), (691, 1278040), (712, 1240345), (718, 1229980), (890, 992276), (1382, 639020), (1436, 614990), (1780, 496138), (1795, 491992), (2764, 319510), (2872, 307495), (3455, 255608), (3560, 248069), (3590, 245996), (5528, 159755), (6910, 127804), (7180, 122998), (13820, 63902), (14360, 61499), (27640, 31951)]