1285157080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{5261}}^1$

素因数の和:5500

約数の個数: 64

約数和(自身を含む): 3000602880

約数和(自身を除く): 1715445800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 197, 248, 310, 394, 620, 788, 985, 1240, 1576, 1970, 3940, 5261, 6107, 7880, 10522, 12214, 21044, 24428, 26305, 30535, 42088, 48856, 52610, 61070, 105220, 122140, 163091, 210440, 244280, 326182, 652364, 815455, 1036417, 1304728, 1630910, 2072834, 3261820, 4145668, 5182085, 6523640, 8291336, 10364170, 20728340, 32128927, 41456680, 64257854, 128515708, 160644635, 257031416, 321289270, 642578540, 1285157080]

約数ペア:

[(1, 1285157080), (2, 642578540), (4, 321289270), (5, 257031416), (8, 160644635), (10, 128515708), (20, 64257854), (31, 41456680), (40, 32128927), (62, 20728340), (124, 10364170), (155, 8291336), (197, 6523640), (248, 5182085), (310, 4145668), (394, 3261820), (620, 2072834), (788, 1630910), (985, 1304728), (1240, 1036417), (1576, 815455), (1970, 652364), (3940, 326182), (5261, 244280), (6107, 210440), (7880, 163091), (10522, 122140), (12214, 105220), (21044, 61070), (24428, 52610), (26305, 48856), (30535, 42088)]