21146880

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5507}}^1$

素因数の和:5531

約数の個数: 72

約数和(自身を含む): 67550112

約数和(自身を除く): 46403232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5507, 11014, 16521, 22028, 27535, 33042, 44056, 55070, 66084, 82605, 88112, 110140, 132168, 165210, 176224, 220280, 264336, 330420, 352448, 440560, 528672, 660840, 704896, 881120, 1057344, 1321680, 1409792, 1762240, 2114688, 2643360, 3524480, 4229376, 5286720, 7048960, 10573440, 21146880]

約数ペア:

[(1, 21146880), (2, 10573440), (3, 7048960), (4, 5286720), (5, 4229376), (6, 3524480), (8, 2643360), (10, 2114688), (12, 1762240), (15, 1409792), (16, 1321680), (20, 1057344), (24, 881120), (30, 704896), (32, 660840), (40, 528672), (48, 440560), (60, 352448), (64, 330420), (80, 264336), (96, 220280), (120, 176224), (128, 165210), (160, 132168), (192, 110140), (240, 88112), (256, 82605), (320, 66084), (384, 55070), (480, 44056), (640, 33042), (768, 27535), (960, 22028), (1280, 16521), (1920, 11014), (3840, 5507)]