21996500

素因数分解:

$2^2\times 5^3\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:126

約数の個数: 96

約数和(自身を含む): 52284960

約数和(自身を除く): 30288460

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 37, 41, 50, 58, 74, 82, 100, 116, 125, 145, 148, 164, 185, 205, 250, 290, 370, 410, 500, 580, 725, 740, 820, 925, 1025, 1073, 1189, 1450, 1517, 1850, 2050, 2146, 2378, 2900, 3034, 3625, 3700, 4100, 4292, 4625, 4756, 5125, 5365, 5945, 6068, 7250, 7585, 9250, 10250, 10730, 11890, 14500, 15170, 18500, 20500, 21460, 23780, 26825, 29725, 30340, 37925, 43993, 53650, 59450, 75850, 87986, 107300, 118900, 134125, 148625, 151700, 175972, 189625, 219965, 268250, 297250, 379250, 439930, 536500, 594500, 758500, 879860, 1099825, 2199650, 4399300, 5499125, 10998250, 21996500]

約数ペア:

[(1, 21996500), (2, 10998250), (4, 5499125), (5, 4399300), (10, 2199650), (20, 1099825), (25, 879860), (29, 758500), (37, 594500), (41, 536500), (50, 439930), (58, 379250), (74, 297250), (82, 268250), (100, 219965), (116, 189625), (125, 175972), (145, 151700), (148, 148625), (164, 134125), (185, 118900), (205, 107300), (250, 87986), (290, 75850), (370, 59450), (410, 53650), (500, 43993), (580, 37925), (725, 30340), (740, 29725), (820, 26825), (925, 23780), (1025, 21460), (1073, 20500), (1189, 18500), (1450, 15170), (1517, 14500), (1850, 11890), (2050, 10730), (2146, 10250), (2378, 9250), (2900, 7585), (3034, 7250), (3625, 6068), (3700, 5945), (4100, 5365), (4292, 5125), (4625, 4756)]