21942250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 45826560

約数和(自身を除く): 23884310

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 79, 101, 110, 125, 158, 202, 250, 275, 395, 505, 550, 790, 869, 1010, 1111, 1375, 1738, 1975, 2222, 2525, 2750, 3950, 4345, 5050, 5555, 7979, 8690, 9875, 11110, 12625, 15958, 19750, 21725, 25250, 27775, 39895, 43450, 55550, 79790, 87769, 108625, 138875, 175538, 199475, 217250, 277750, 398950, 438845, 877690, 997375, 1994750, 2194225, 4388450, 10971125, 21942250]

約数ペア:

[(1, 21942250), (2, 10971125), (5, 4388450), (10, 2194225), (11, 1994750), (22, 997375), (25, 877690), (50, 438845), (55, 398950), (79, 277750), (101, 217250), (110, 199475), (125, 175538), (158, 138875), (202, 108625), (250, 87769), (275, 79790), (395, 55550), (505, 43450), (550, 39895), (790, 27775), (869, 25250), (1010, 21725), (1111, 19750), (1375, 15958), (1738, 12625), (1975, 11110), (2222, 9875), (2525, 8690), (2750, 7979), (3950, 5555), (4345, 5050)]