21600680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:530

約数の個数: 64

約数和(自身を含む): 51788160

約数和(自身を除く): 30187480

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 53, 92, 106, 115, 184, 212, 230, 265, 424, 443, 460, 530, 886, 920, 1060, 1219, 1772, 2120, 2215, 2438, 3544, 4430, 4876, 6095, 8860, 9752, 10189, 12190, 17720, 20378, 23479, 24380, 40756, 46958, 48760, 50945, 81512, 93916, 101890, 117395, 187832, 203780, 234790, 407560, 469580, 540017, 939160, 1080034, 2160068, 2700085, 4320136, 5400170, 10800340, 21600680]

約数ペア:

[(1, 21600680), (2, 10800340), (4, 5400170), (5, 4320136), (8, 2700085), (10, 2160068), (20, 1080034), (23, 939160), (40, 540017), (46, 469580), (53, 407560), (92, 234790), (106, 203780), (115, 187832), (184, 117395), (212, 101890), (230, 93916), (265, 81512), (424, 50945), (443, 48760), (460, 46958), (530, 40756), (886, 24380), (920, 23479), (1060, 20378), (1219, 17720), (1772, 12190), (2120, 10189), (2215, 9752), (2438, 8860), (3544, 6095), (4430, 4876)]