21539040

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1951}}^1$

素因数の和:1992

約数の個数: 96

約数和(自身を含む): 70834176

約数和(自身を除く): 49295136

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 69, 80, 92, 96, 115, 120, 138, 160, 184, 230, 240, 276, 345, 368, 460, 480, 552, 690, 736, 920, 1104, 1380, 1840, 1951, 2208, 2760, 3680, 3902, 5520, 5853, 7804, 9755, 11040, 11706, 15608, 19510, 23412, 29265, 31216, 39020, 44873, 46824, 58530, 62432, 78040, 89746, 93648, 117060, 134619, 156080, 179492, 187296, 224365, 234120, 269238, 312160, 358984, 448730, 468240, 538476, 673095, 717968, 897460, 936480, 1076952, 1346190, 1435936, 1794920, 2153904, 2692380, 3589840, 4307808, 5384760, 7179680, 10769520, 21539040]

約数ペア:

[(1, 21539040), (2, 10769520), (3, 7179680), (4, 5384760), (5, 4307808), (6, 3589840), (8, 2692380), (10, 2153904), (12, 1794920), (15, 1435936), (16, 1346190), (20, 1076952), (23, 936480), (24, 897460), (30, 717968), (32, 673095), (40, 538476), (46, 468240), (48, 448730), (60, 358984), (69, 312160), (80, 269238), (92, 234120), (96, 224365), (115, 187296), (120, 179492), (138, 156080), (160, 134619), (184, 117060), (230, 93648), (240, 89746), (276, 78040), (345, 62432), (368, 58530), (460, 46824), (480, 44873), (552, 39020), (690, 31216), (736, 29265), (920, 23412), (1104, 19510), (1380, 15608), (1840, 11706), (1951, 11040), (2208, 9755), (2760, 7804), (3680, 5853), (3902, 5520)]