1905359720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{25031}}^1$

素因数の和:25226

約数の個数: 64

約数和(自身を含む): 4704013440

約数和(自身を除く): 2798653720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 173, 220, 346, 440, 692, 865, 1384, 1730, 1903, 3460, 3806, 6920, 7612, 9515, 15224, 19030, 25031, 38060, 50062, 76120, 100124, 125155, 200248, 250310, 275341, 500620, 550682, 1001240, 1101364, 1376705, 2202728, 2753410, 4330363, 5506820, 8660726, 11013640, 17321452, 21651815, 34642904, 43303630, 47633993, 86607260, 95267986, 173214520, 190535972, 238169965, 381071944, 476339930, 952679860, 1905359720]

約数ペア:

[(1, 1905359720), (2, 952679860), (4, 476339930), (5, 381071944), (8, 238169965), (10, 190535972), (11, 173214520), (20, 95267986), (22, 86607260), (40, 47633993), (44, 43303630), (55, 34642904), (88, 21651815), (110, 17321452), (173, 11013640), (220, 8660726), (346, 5506820), (440, 4330363), (692, 2753410), (865, 2202728), (1384, 1376705), (1730, 1101364), (1903, 1001240), (3460, 550682), (3806, 500620), (6920, 275341), (7612, 250310), (9515, 200248), (15224, 125155), (19030, 100124), (25031, 76120), (38060, 50062)]