520480107

素因数分解:

$3^3\times 7^2\times {\mathrm{197}}^1\times {\mathrm{1997}}^1$

素因数の和:2217

約数の個数: 48

約数和(自身を含む): 901977120

約数和(自身を除く): 381497013

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 197, 441, 591, 1323, 1379, 1773, 1997, 4137, 5319, 5991, 9653, 12411, 13979, 17973, 28959, 37233, 41937, 53919, 86877, 97853, 125811, 260631, 293559, 377433, 393409, 880677, 1180227, 2642031, 2753863, 3540681, 8261589, 10622043, 19277041, 24784767, 57831123, 74354301, 173493369, 520480107]

約数ペア:

[(1, 520480107), (3, 173493369), (7, 74354301), (9, 57831123), (21, 24784767), (27, 19277041), (49, 10622043), (63, 8261589), (147, 3540681), (189, 2753863), (197, 2642031), (441, 1180227), (591, 880677), (1323, 393409), (1379, 377433), (1773, 293559), (1997, 260631), (4137, 125811), (5319, 97853), (5991, 86877), (9653, 53919), (12411, 41937), (13979, 37233), (17973, 28959)]