81573840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:194

約数の個数: 240

約数和(自身を含む): 295963200

約数和(自身を除く): 214389360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 67, 72, 76, 80, 89, 90, 95, 114, 120, 134, 144, 152, 171, 178, 180, 190, 201, 228, 240, 267, 268, 285, 304, 335, 342, 356, 360, 380, 402, 445, 456, 534, 536, 570, 603, 670, 684, 712, 720, 760, 801, 804, 855, 890, 912, 1005, 1068, 1072, 1140, 1206, 1273, 1335, 1340, 1368, 1424, 1520, 1602, 1608, 1691, 1710, 1780, 2010, 2136, 2280, 2412, 2546, 2670, 2680, 2736, 3015, 3204, 3216, 3382, 3420, 3560, 3819, 4005, 4020, 4272, 4560, 4824, 5073, 5092, 5340, 5360, 5963, 6030, 6365, 6408, 6764, 6840, 7120, 7638, 8010, 8040, 8455, 9648, 10146, 10184, 10680, 11457, 11926, 12060, 12730, 12816, 13528, 13680, 15219, 15276, 16020, 16080, 16910, 17889, 19095, 20292, 20368, 21360, 22914, 23852, 24120, 25365, 25460, 27056, 29815, 30438, 30552, 32040, 33820, 35778, 38190, 40584, 45828, 47704, 48240, 50730, 50920, 53667, 57285, 59630, 60876, 61104, 64080, 67640, 71556, 76095, 76380, 81168, 89445, 91656, 95408, 101460, 101840, 107334, 113297, 114570, 119260, 121752, 135280, 143112, 152190, 152760, 178890, 183312, 202920, 214668, 226594, 229140, 238520, 243504, 268335, 286224, 304380, 305520, 339891, 357780, 405840, 429336, 453188, 458280, 477040, 536670, 566485, 608760, 679782, 715560, 858672, 906376, 916560, 1019673, 1073340, 1132970, 1217520, 1359564, 1431120, 1699455, 1812752, 2039346, 2146680, 2265940, 2719128, 3398910, 4078692, 4293360, 4531880, 5098365, 5438256, 6797820, 8157384, 9063760, 10196730, 13595640, 16314768, 20393460, 27191280, 40786920, 81573840]

約数ペア:

[(1, 81573840), (2, 40786920), (3, 27191280), (4, 20393460), (5, 16314768), (6, 13595640), (8, 10196730), (9, 9063760), (10, 8157384), (12, 6797820), (15, 5438256), (16, 5098365), (18, 4531880), (19, 4293360), (20, 4078692), (24, 3398910), (30, 2719128), (36, 2265940), (38, 2146680), (40, 2039346), (45, 1812752), (48, 1699455), (57, 1431120), (60, 1359564), (67, 1217520), (72, 1132970), (76, 1073340), (80, 1019673), (89, 916560), (90, 906376), (95, 858672), (114, 715560), (120, 679782), (134, 608760), (144, 566485), (152, 536670), (171, 477040), (178, 458280), (180, 453188), (190, 429336), (201, 405840), (228, 357780), (240, 339891), (267, 305520), (268, 304380), (285, 286224), (304, 268335), (335, 243504), (342, 238520), (356, 229140), (360, 226594), (380, 214668), (402, 202920), (445, 183312), (456, 178890), (534, 152760), (536, 152190), (570, 143112), (603, 135280), (670, 121752), (684, 119260), (712, 114570), (720, 113297), (760, 107334), (801, 101840), (804, 101460), (855, 95408), (890, 91656), (912, 89445), (1005, 81168), (1068, 76380), (1072, 76095), (1140, 71556), (1206, 67640), (1273, 64080), (1335, 61104), (1340, 60876), (1368, 59630), (1424, 57285), (1520, 53667), (1602, 50920), (1608, 50730), (1691, 48240), (1710, 47704), (1780, 45828), (2010, 40584), (2136, 38190), (2280, 35778), (2412, 33820), (2546, 32040), (2670, 30552), (2680, 30438), (2736, 29815), (3015, 27056), (3204, 25460), (3216, 25365), (3382, 24120), (3420, 23852), (3560, 22914), (3819, 21360), (4005, 20368), (4020, 20292), (4272, 19095), (4560, 17889), (4824, 16910), (5073, 16080), (5092, 16020), (5340, 15276), (5360, 15219), (5963, 13680), (6030, 13528), (6365, 12816), (6408, 12730), (6764, 12060), (6840, 11926), (7120, 11457), (7638, 10680), (8010, 10184), (8040, 10146), (8455, 9648)]