19631280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:694

約数の個数: 80

約数和(自身を含む): 61362144

約数和(自身を除く): 41730864

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 157, 240, 314, 471, 521, 628, 785, 942, 1042, 1256, 1563, 1570, 1884, 2084, 2355, 2512, 2605, 3126, 3140, 3768, 4168, 4710, 5210, 6252, 6280, 7536, 7815, 8336, 9420, 10420, 12504, 12560, 15630, 18840, 20840, 25008, 31260, 37680, 41680, 62520, 81797, 125040, 163594, 245391, 327188, 408985, 490782, 654376, 817970, 981564, 1226955, 1308752, 1635940, 1963128, 2453910, 3271880, 3926256, 4907820, 6543760, 9815640, 19631280]

約数ペア:

[(1, 19631280), (2, 9815640), (3, 6543760), (4, 4907820), (5, 3926256), (6, 3271880), (8, 2453910), (10, 1963128), (12, 1635940), (15, 1308752), (16, 1226955), (20, 981564), (24, 817970), (30, 654376), (40, 490782), (48, 408985), (60, 327188), (80, 245391), (120, 163594), (157, 125040), (240, 81797), (314, 62520), (471, 41680), (521, 37680), (628, 31260), (785, 25008), (942, 20840), (1042, 18840), (1256, 15630), (1563, 12560), (1570, 12504), (1884, 10420), (2084, 9420), (2355, 8336), (2512, 7815), (2605, 7536), (3126, 6280), (3140, 6252), (3768, 5210), (4168, 4710)]