21215200

素因数分解:

$2^5\times 5^2\times {\mathrm{23}}^1\times {\mathrm{1153}}^1$

素因数の和:1196

約数の個数: 72

約数和(自身を含む): 54090288

約数和(自身を除く): 32875088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 80, 92, 100, 115, 160, 184, 200, 230, 368, 400, 460, 575, 736, 800, 920, 1150, 1153, 1840, 2300, 2306, 3680, 4600, 4612, 5765, 9200, 9224, 11530, 18400, 18448, 23060, 26519, 28825, 36896, 46120, 53038, 57650, 92240, 106076, 115300, 132595, 184480, 212152, 230600, 265190, 424304, 461200, 530380, 662975, 848608, 922400, 1060760, 1325950, 2121520, 2651900, 4243040, 5303800, 10607600, 21215200]

約数ペア:

[(1, 21215200), (2, 10607600), (4, 5303800), (5, 4243040), (8, 2651900), (10, 2121520), (16, 1325950), (20, 1060760), (23, 922400), (25, 848608), (32, 662975), (40, 530380), (46, 461200), (50, 424304), (80, 265190), (92, 230600), (100, 212152), (115, 184480), (160, 132595), (184, 115300), (200, 106076), (230, 92240), (368, 57650), (400, 53038), (460, 46120), (575, 36896), (736, 28825), (800, 26519), (920, 23060), (1150, 18448), (1153, 18400), (1840, 11530), (2300, 9224), (2306, 9200), (3680, 5765), (4600, 4612)]