18674840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{947}}^1$

素因数の和:1004

約数の個数: 64

約数和(自身を含む): 46072800

約数和(自身を除く): 27397960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 34, 40, 58, 68, 85, 116, 136, 145, 170, 232, 290, 340, 493, 580, 680, 947, 986, 1160, 1894, 1972, 2465, 3788, 3944, 4735, 4930, 7576, 9470, 9860, 16099, 18940, 19720, 27463, 32198, 37880, 54926, 64396, 80495, 109852, 128792, 137315, 160990, 219704, 274630, 321980, 466871, 549260, 643960, 933742, 1098520, 1867484, 2334355, 3734968, 4668710, 9337420, 18674840]

約数ペア:

[(1, 18674840), (2, 9337420), (4, 4668710), (5, 3734968), (8, 2334355), (10, 1867484), (17, 1098520), (20, 933742), (29, 643960), (34, 549260), (40, 466871), (58, 321980), (68, 274630), (85, 219704), (116, 160990), (136, 137315), (145, 128792), (170, 109852), (232, 80495), (290, 64396), (340, 54926), (493, 37880), (580, 32198), (680, 27463), (947, 19720), (986, 18940), (1160, 16099), (1894, 9860), (1972, 9470), (2465, 7576), (3788, 4930), (3944, 4735)]