19938888640

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{18451}}^1$

素因数の和:18786

約数の個数: 112

約数和(自身を含む): 51967327104

約数和(自身を除く): 32028438464

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 307, 320, 352, 440, 614, 704, 880, 1228, 1535, 1760, 2456, 3070, 3377, 3520, 4912, 6140, 6754, 9824, 12280, 13508, 16885, 18451, 19648, 24560, 27016, 33770, 36902, 49120, 54032, 67540, 73804, 92255, 98240, 108064, 135080, 147608, 184510, 202961, 216128, 270160, 295216, 369020, 405922, 540320, 590432, 738040, 811844, 1014805, 1080640, 1180864, 1476080, 1623688, 2029610, 2952160, 3247376, 4059220, 5664457, 5904320, 6494752, 8118440, 11328914, 12989504, 16236880, 22657828, 28322285, 32473760, 45315656, 56644570, 62309027, 64947520, 90631312, 113289140, 124618054, 181262624, 226578280, 249236108, 311545135, 362525248, 453156560, 498472216, 623090270, 906313120, 996944432, 1246180540, 1812626240, 1993888864, 2492361080, 3987777728, 4984722160, 9969444320, 19938888640]

約数ペア:

[(1, 19938888640), (2, 9969444320), (4, 4984722160), (5, 3987777728), (8, 2492361080), (10, 1993888864), (11, 1812626240), (16, 1246180540), (20, 996944432), (22, 906313120), (32, 623090270), (40, 498472216), (44, 453156560), (55, 362525248), (64, 311545135), (80, 249236108), (88, 226578280), (110, 181262624), (160, 124618054), (176, 113289140), (220, 90631312), (307, 64947520), (320, 62309027), (352, 56644570), (440, 45315656), (614, 32473760), (704, 28322285), (880, 22657828), (1228, 16236880), (1535, 12989504), (1760, 11328914), (2456, 8118440), (3070, 6494752), (3377, 5904320), (3520, 5664457), (4912, 4059220), (6140, 3247376), (6754, 2952160), (9824, 2029610), (12280, 1623688), (13508, 1476080), (16885, 1180864), (18451, 1080640), (19648, 1014805), (24560, 811844), (27016, 738040), (33770, 590432), (36902, 540320), (49120, 405922), (54032, 369020), (67540, 295216), (73804, 270160), (92255, 216128), (98240, 202961), (108064, 184510), (135080, 147608)]