145890640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{37217}}^1$

素因数の和:37244

約数の個数: 60

約数和(自身を含む): 394585236

約数和(自身を除く): 248694596

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 37217, 74434, 148868, 186085, 260519, 297736, 372170, 521038, 595472, 744340, 1042076, 1302595, 1488680, 1823633, 2084152, 2605190, 2977360, 3647266, 4168304, 5210380, 7294532, 9118165, 10420760, 14589064, 18236330, 20841520, 29178128, 36472660, 72945320, 145890640]

約数ペア:

[(1, 145890640), (2, 72945320), (4, 36472660), (5, 29178128), (7, 20841520), (8, 18236330), (10, 14589064), (14, 10420760), (16, 9118165), (20, 7294532), (28, 5210380), (35, 4168304), (40, 3647266), (49, 2977360), (56, 2605190), (70, 2084152), (80, 1823633), (98, 1488680), (112, 1302595), (140, 1042076), (196, 744340), (245, 595472), (280, 521038), (392, 372170), (490, 297736), (560, 260519), (784, 186085), (980, 148868), (1960, 74434), (3920, 37217)]