31008720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2749}}^1$

素因数の和:2812

約数の個数: 80

約数和(自身を含む): 98208000

約数和(自身を除く): 67199280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 47, 48, 60, 80, 94, 120, 141, 188, 235, 240, 282, 376, 470, 564, 705, 752, 940, 1128, 1410, 1880, 2256, 2749, 2820, 3760, 5498, 5640, 8247, 10996, 11280, 13745, 16494, 21992, 27490, 32988, 41235, 43984, 54980, 65976, 82470, 109960, 129203, 131952, 164940, 219920, 258406, 329880, 387609, 516812, 646015, 659760, 775218, 1033624, 1292030, 1550436, 1938045, 2067248, 2584060, 3100872, 3876090, 5168120, 6201744, 7752180, 10336240, 15504360, 31008720]

約数ペア:

[(1, 31008720), (2, 15504360), (3, 10336240), (4, 7752180), (5, 6201744), (6, 5168120), (8, 3876090), (10, 3100872), (12, 2584060), (15, 2067248), (16, 1938045), (20, 1550436), (24, 1292030), (30, 1033624), (40, 775218), (47, 659760), (48, 646015), (60, 516812), (80, 387609), (94, 329880), (120, 258406), (141, 219920), (188, 164940), (235, 131952), (240, 129203), (282, 109960), (376, 82470), (470, 65976), (564, 54980), (705, 43984), (752, 41235), (940, 32988), (1128, 27490), (1410, 21992), (1880, 16494), (2256, 13745), (2749, 11280), (2820, 10996), (3760, 8247), (5498, 5640)]