20928120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:237

約数の個数: 128

約数和(自身を含む): 67564800

約数和(自身を除く): 46636680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 67, 76, 95, 114, 120, 134, 137, 152, 190, 201, 228, 268, 274, 285, 335, 380, 402, 411, 456, 536, 548, 570, 670, 685, 760, 804, 822, 1005, 1096, 1140, 1273, 1340, 1370, 1608, 1644, 2010, 2055, 2280, 2546, 2603, 2680, 2740, 3288, 3819, 4020, 4110, 5092, 5206, 5480, 6365, 7638, 7809, 8040, 8220, 9179, 10184, 10412, 12730, 13015, 15276, 15618, 16440, 18358, 19095, 20824, 25460, 26030, 27537, 30552, 31236, 36716, 38190, 39045, 45895, 50920, 52060, 55074, 62472, 73432, 76380, 78090, 91790, 104120, 110148, 137685, 152760, 156180, 174401, 183580, 220296, 275370, 312360, 348802, 367160, 523203, 550740, 697604, 872005, 1046406, 1101480, 1395208, 1744010, 2092812, 2616015, 3488020, 4185624, 5232030, 6976040, 10464060, 20928120]

約数ペア:

[(1, 20928120), (2, 10464060), (3, 6976040), (4, 5232030), (5, 4185624), (6, 3488020), (8, 2616015), (10, 2092812), (12, 1744010), (15, 1395208), (19, 1101480), (20, 1046406), (24, 872005), (30, 697604), (38, 550740), (40, 523203), (57, 367160), (60, 348802), (67, 312360), (76, 275370), (95, 220296), (114, 183580), (120, 174401), (134, 156180), (137, 152760), (152, 137685), (190, 110148), (201, 104120), (228, 91790), (268, 78090), (274, 76380), (285, 73432), (335, 62472), (380, 55074), (402, 52060), (411, 50920), (456, 45895), (536, 39045), (548, 38190), (570, 36716), (670, 31236), (685, 30552), (760, 27537), (804, 26030), (822, 25460), (1005, 20824), (1096, 19095), (1140, 18358), (1273, 16440), (1340, 15618), (1370, 15276), (1608, 13015), (1644, 12730), (2010, 10412), (2055, 10184), (2280, 9179), (2546, 8220), (2603, 8040), (2680, 7809), (2740, 7638), (3288, 6365), (3819, 5480), (4020, 5206), (4110, 5092)]