128893680

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{19891}}^1$

素因数の和:19916

約数の個数: 100

約数和(自身を含む): 447689352

約数和(自身を除く): 318795672

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 19891, 39782, 59673, 79564, 99455, 119346, 159128, 179019, 198910, 238692, 298365, 318256, 358038, 397820, 477384, 537057, 596730, 716076, 795640, 895095, 954768, 1074114, 1193460, 1432152, 1591280, 1611171, 1790190, 2148228, 2386920, 2685285, 2864304, 3222342, 3580380, 4296456, 4773840, 5370570, 6444684, 7160760, 8055855, 8592912, 10741140, 12889368, 14321520, 16111710, 21482280, 25778736, 32223420, 42964560, 64446840, 128893680]

約数ペア:

[(1, 128893680), (2, 64446840), (3, 42964560), (4, 32223420), (5, 25778736), (6, 21482280), (8, 16111710), (9, 14321520), (10, 12889368), (12, 10741140), (15, 8592912), (16, 8055855), (18, 7160760), (20, 6444684), (24, 5370570), (27, 4773840), (30, 4296456), (36, 3580380), (40, 3222342), (45, 2864304), (48, 2685285), (54, 2386920), (60, 2148228), (72, 1790190), (80, 1611171), (81, 1591280), (90, 1432152), (108, 1193460), (120, 1074114), (135, 954768), (144, 895095), (162, 795640), (180, 716076), (216, 596730), (240, 537057), (270, 477384), (324, 397820), (360, 358038), (405, 318256), (432, 298365), (540, 238692), (648, 198910), (720, 179019), (810, 159128), (1080, 119346), (1296, 99455), (1620, 79564), (2160, 59673), (3240, 39782), (6480, 19891)]