19668880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:165

約数の個数: 160

約数和(自身を含む): 59424768

約数和(自身を除く): 39755888

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 80, 88, 103, 110, 112, 124, 140, 154, 155, 176, 206, 217, 220, 248, 280, 308, 310, 341, 385, 412, 434, 440, 496, 515, 560, 616, 620, 682, 721, 770, 824, 868, 880, 1030, 1085, 1133, 1232, 1240, 1364, 1442, 1540, 1648, 1705, 1736, 2060, 2170, 2266, 2387, 2480, 2728, 2884, 3080, 3193, 3410, 3472, 3605, 4120, 4340, 4532, 4774, 5456, 5665, 5768, 6160, 6386, 6820, 7210, 7931, 8240, 8680, 9064, 9548, 11330, 11536, 11935, 12772, 13640, 14420, 15862, 15965, 17360, 18128, 19096, 22351, 22660, 23870, 25544, 27280, 28840, 31724, 31930, 35123, 38192, 39655, 44702, 45320, 47740, 51088, 57680, 63448, 63860, 70246, 79310, 89404, 90640, 95480, 111755, 126896, 127720, 140492, 158620, 175615, 178808, 190960, 223510, 245861, 255440, 280984, 317240, 351230, 357616, 447020, 491722, 561968, 634480, 702460, 894040, 983444, 1229305, 1404920, 1788080, 1966888, 2458610, 2809840, 3933776, 4917220, 9834440, 19668880]

約数ペア:

[(1, 19668880), (2, 9834440), (4, 4917220), (5, 3933776), (7, 2809840), (8, 2458610), (10, 1966888), (11, 1788080), (14, 1404920), (16, 1229305), (20, 983444), (22, 894040), (28, 702460), (31, 634480), (35, 561968), (40, 491722), (44, 447020), (55, 357616), (56, 351230), (62, 317240), (70, 280984), (77, 255440), (80, 245861), (88, 223510), (103, 190960), (110, 178808), (112, 175615), (124, 158620), (140, 140492), (154, 127720), (155, 126896), (176, 111755), (206, 95480), (217, 90640), (220, 89404), (248, 79310), (280, 70246), (308, 63860), (310, 63448), (341, 57680), (385, 51088), (412, 47740), (434, 45320), (440, 44702), (496, 39655), (515, 38192), (560, 35123), (616, 31930), (620, 31724), (682, 28840), (721, 27280), (770, 25544), (824, 23870), (868, 22660), (880, 22351), (1030, 19096), (1085, 18128), (1133, 17360), (1232, 15965), (1240, 15862), (1364, 14420), (1442, 13640), (1540, 12772), (1648, 11935), (1705, 11536), (1736, 11330), (2060, 9548), (2170, 9064), (2266, 8680), (2387, 8240), (2480, 7931), (2728, 7210), (2884, 6820), (3080, 6386), (3193, 6160), (3410, 5768), (3472, 5665), (3605, 5456), (4120, 4774), (4340, 4532)]