20193960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:571

約数の個数: 128

約数和(自身を含む): 67651200

約数和(自身を除く): 47457240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 19, 20, 24, 30, 34, 38, 40, 51, 57, 60, 68, 76, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 255, 285, 323, 340, 380, 408, 456, 510, 521, 570, 646, 680, 760, 969, 1020, 1042, 1140, 1292, 1563, 1615, 1938, 2040, 2084, 2280, 2584, 2605, 3126, 3230, 3876, 4168, 4845, 5210, 6252, 6460, 7752, 7815, 8857, 9690, 9899, 10420, 12504, 12920, 15630, 17714, 19380, 19798, 20840, 26571, 29697, 31260, 35428, 38760, 39596, 44285, 49495, 53142, 59394, 62520, 70856, 79192, 88570, 98990, 106284, 118788, 132855, 148485, 168283, 177140, 197980, 212568, 237576, 265710, 296970, 336566, 354280, 395960, 504849, 531420, 593940, 673132, 841415, 1009698, 1062840, 1187880, 1346264, 1682830, 2019396, 2524245, 3365660, 4038792, 5048490, 6731320, 10096980, 20193960]

約数ペア:

[(1, 20193960), (2, 10096980), (3, 6731320), (4, 5048490), (5, 4038792), (6, 3365660), (8, 2524245), (10, 2019396), (12, 1682830), (15, 1346264), (17, 1187880), (19, 1062840), (20, 1009698), (24, 841415), (30, 673132), (34, 593940), (38, 531420), (40, 504849), (51, 395960), (57, 354280), (60, 336566), (68, 296970), (76, 265710), (85, 237576), (95, 212568), (102, 197980), (114, 177140), (120, 168283), (136, 148485), (152, 132855), (170, 118788), (190, 106284), (204, 98990), (228, 88570), (255, 79192), (285, 70856), (323, 62520), (340, 59394), (380, 53142), (408, 49495), (456, 44285), (510, 39596), (521, 38760), (570, 35428), (646, 31260), (680, 29697), (760, 26571), (969, 20840), (1020, 19798), (1042, 19380), (1140, 17714), (1292, 15630), (1563, 12920), (1615, 12504), (1938, 10420), (2040, 9899), (2084, 9690), (2280, 8857), (2584, 7815), (2605, 7752), (3126, 6460), (3230, 6252), (3876, 5210), (4168, 4845)]