19196490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{647}}^1$

素因数の和:723

約数の個数: 64

約数和(自身を含む): 49268736

約数和(自身を除く): 30072246

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 43, 46, 69, 86, 115, 129, 138, 215, 230, 258, 345, 430, 645, 647, 690, 989, 1290, 1294, 1941, 1978, 2967, 3235, 3882, 4945, 5934, 6470, 9705, 9890, 14835, 14881, 19410, 27821, 29670, 29762, 44643, 55642, 74405, 83463, 89286, 139105, 148810, 166926, 223215, 278210, 417315, 446430, 639883, 834630, 1279766, 1919649, 3199415, 3839298, 6398830, 9598245, 19196490]

約数ペア:

[(1, 19196490), (2, 9598245), (3, 6398830), (5, 3839298), (6, 3199415), (10, 1919649), (15, 1279766), (23, 834630), (30, 639883), (43, 446430), (46, 417315), (69, 278210), (86, 223215), (115, 166926), (129, 148810), (138, 139105), (215, 89286), (230, 83463), (258, 74405), (345, 55642), (430, 44643), (645, 29762), (647, 29670), (690, 27821), (989, 19410), (1290, 14881), (1294, 14835), (1941, 9890), (1978, 9705), (2967, 6470), (3235, 5934), (3882, 4945)]