20393460

素因数分解:

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

素因数の和:190

約数の個数: 144

約数和(自身を含む): 66830400

約数和(自身を除く): 46436940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 67, 76, 89, 90, 95, 114, 134, 171, 178, 180, 190, 201, 228, 267, 268, 285, 335, 342, 356, 380, 402, 445, 534, 570, 603, 670, 684, 801, 804, 855, 890, 1005, 1068, 1140, 1206, 1273, 1335, 1340, 1602, 1691, 1710, 1780, 2010, 2412, 2546, 2670, 3015, 3204, 3382, 3420, 3819, 4005, 4020, 5073, 5092, 5340, 5963, 6030, 6365, 6764, 7638, 8010, 8455, 10146, 11457, 11926, 12060, 12730, 15219, 15276, 16020, 16910, 17889, 19095, 20292, 22914, 23852, 25365, 25460, 29815, 30438, 33820, 35778, 38190, 45828, 50730, 53667, 57285, 59630, 60876, 71556, 76095, 76380, 89445, 101460, 107334, 113297, 114570, 119260, 152190, 178890, 214668, 226594, 229140, 268335, 304380, 339891, 357780, 453188, 536670, 566485, 679782, 1019673, 1073340, 1132970, 1359564, 1699455, 2039346, 2265940, 3398910, 4078692, 5098365, 6797820, 10196730, 20393460]

約数ペア:

[(1, 20393460), (2, 10196730), (3, 6797820), (4, 5098365), (5, 4078692), (6, 3398910), (9, 2265940), (10, 2039346), (12, 1699455), (15, 1359564), (18, 1132970), (19, 1073340), (20, 1019673), (30, 679782), (36, 566485), (38, 536670), (45, 453188), (57, 357780), (60, 339891), (67, 304380), (76, 268335), (89, 229140), (90, 226594), (95, 214668), (114, 178890), (134, 152190), (171, 119260), (178, 114570), (180, 113297), (190, 107334), (201, 101460), (228, 89445), (267, 76380), (268, 76095), (285, 71556), (335, 60876), (342, 59630), (356, 57285), (380, 53667), (402, 50730), (445, 45828), (534, 38190), (570, 35778), (603, 33820), (670, 30438), (684, 29815), (801, 25460), (804, 25365), (855, 23852), (890, 22914), (1005, 20292), (1068, 19095), (1140, 17889), (1206, 16910), (1273, 16020), (1335, 15276), (1340, 15219), (1602, 12730), (1691, 12060), (1710, 11926), (1780, 11457), (2010, 10146), (2412, 8455), (2546, 8010), (2670, 7638), (3015, 6764), (3204, 6365), (3382, 6030), (3420, 5963), (3819, 5340), (4005, 5092), (4020, 5073)]