68020380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19889}}^1$

素因数の和:19923

約数の個数: 72

約数和(自身を含む): 217198800

約数和(自身を除く): 149178420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 19889, 39778, 59667, 79556, 99445, 119334, 179001, 198890, 238668, 298335, 358002, 377891, 397780, 596670, 716004, 755782, 895005, 1133673, 1193340, 1511564, 1790010, 1889455, 2267346, 3401019, 3580020, 3778910, 4534692, 5668365, 6802038, 7557820, 11336730, 13604076, 17005095, 22673460, 34010190, 68020380]

約数ペア:

[(1, 68020380), (2, 34010190), (3, 22673460), (4, 17005095), (5, 13604076), (6, 11336730), (9, 7557820), (10, 6802038), (12, 5668365), (15, 4534692), (18, 3778910), (19, 3580020), (20, 3401019), (30, 2267346), (36, 1889455), (38, 1790010), (45, 1511564), (57, 1193340), (60, 1133673), (76, 895005), (90, 755782), (95, 716004), (114, 596670), (171, 397780), (180, 377891), (190, 358002), (228, 298335), (285, 238668), (342, 198890), (380, 179001), (570, 119334), (684, 99445), (855, 79556), (1140, 59667), (1710, 39778), (3420, 19889)]