19998960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3623}}^1$

素因数の和:3662

約数の個数: 80

約数和(自身を含む): 64710144

約数和(自身を除く): 44711184

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3623, 5520, 7246, 10869, 14492, 18115, 21738, 28984, 36230, 43476, 54345, 57968, 72460, 83329, 86952, 108690, 144920, 166658, 173904, 217380, 249987, 289840, 333316, 416645, 434760, 499974, 666632, 833290, 869520, 999948, 1249935, 1333264, 1666580, 1999896, 2499870, 3333160, 3999792, 4999740, 6666320, 9999480, 19998960]

約数ペア:

[(1, 19998960), (2, 9999480), (3, 6666320), (4, 4999740), (5, 3999792), (6, 3333160), (8, 2499870), (10, 1999896), (12, 1666580), (15, 1333264), (16, 1249935), (20, 999948), (23, 869520), (24, 833290), (30, 666632), (40, 499974), (46, 434760), (48, 416645), (60, 333316), (69, 289840), (80, 249987), (92, 217380), (115, 173904), (120, 166658), (138, 144920), (184, 108690), (230, 86952), (240, 83329), (276, 72460), (345, 57968), (368, 54345), (460, 43476), (552, 36230), (690, 28984), (920, 21738), (1104, 18115), (1380, 14492), (1840, 10869), (2760, 7246), (3623, 5520)]