18439040

素因数分解:

$2^7\times 5^1\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:679

約数の個数: 64

約数和(自身を含む): 45092160

約数和(自身を除く): 26653120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 188, 235, 320, 376, 470, 613, 640, 752, 940, 1226, 1504, 1880, 2452, 3008, 3065, 3760, 4904, 6016, 6130, 7520, 9808, 12260, 15040, 19616, 24520, 28811, 30080, 39232, 49040, 57622, 78464, 98080, 115244, 144055, 196160, 230488, 288110, 392320, 460976, 576220, 921952, 1152440, 1843904, 2304880, 3687808, 4609760, 9219520, 18439040]

約数ペア:

[(1, 18439040), (2, 9219520), (4, 4609760), (5, 3687808), (8, 2304880), (10, 1843904), (16, 1152440), (20, 921952), (32, 576220), (40, 460976), (47, 392320), (64, 288110), (80, 230488), (94, 196160), (128, 144055), (160, 115244), (188, 98080), (235, 78464), (320, 57622), (376, 49040), (470, 39232), (613, 30080), (640, 28811), (752, 24520), (940, 19616), (1226, 15040), (1504, 12260), (1880, 9808), (2452, 7520), (3008, 6130), (3065, 6016), (3760, 4904)]