20649832

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:338

約数の個数: 64

約数和(自身を含む): 47520000

約数和(自身を除く): 26870168

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 109, 119, 136, 199, 218, 238, 398, 436, 476, 763, 796, 872, 952, 1393, 1526, 1592, 1853, 2786, 3052, 3383, 3706, 5572, 6104, 6766, 7412, 11144, 12971, 13532, 14824, 21691, 23681, 25942, 27064, 43382, 47362, 51884, 86764, 94724, 103768, 151837, 173528, 189448, 303674, 368747, 607348, 737494, 1214696, 1474988, 2581229, 2949976, 5162458, 10324916, 20649832]

約数ペア:

[(1, 20649832), (2, 10324916), (4, 5162458), (7, 2949976), (8, 2581229), (14, 1474988), (17, 1214696), (28, 737494), (34, 607348), (56, 368747), (68, 303674), (109, 189448), (119, 173528), (136, 151837), (199, 103768), (218, 94724), (238, 86764), (398, 51884), (436, 47362), (476, 43382), (763, 27064), (796, 25942), (872, 23681), (952, 21691), (1393, 14824), (1526, 13532), (1592, 12971), (1853, 11144), (2786, 7412), (3052, 6766), (3383, 6104), (3706, 5572)]