15400385

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 26417664

約数和(自身を除く): 11017279

約数列:

[1, 5, 7, 11, 13, 17, 35, 55, 65, 77, 85, 91, 119, 143, 181, 187, 221, 385, 455, 595, 715, 905, 935, 1001, 1105, 1267, 1309, 1547, 1991, 2353, 2431, 3077, 5005, 6335, 6545, 7735, 9955, 11765, 12155, 13937, 15385, 16471, 17017, 21539, 25883, 33847, 40001, 69685, 82355, 85085, 107695, 129415, 169235, 181181, 200005, 236929, 280007, 440011, 905905, 1184645, 1400035, 2200055, 3080077, 15400385]

約数ペア:

[(1, 15400385), (5, 3080077), (7, 2200055), (11, 1400035), (13, 1184645), (17, 905905), (35, 440011), (55, 280007), (65, 236929), (77, 200005), (85, 181181), (91, 169235), (119, 129415), (143, 107695), (181, 85085), (187, 82355), (221, 69685), (385, 40001), (455, 33847), (595, 25883), (715, 21539), (905, 17017), (935, 16471), (1001, 15385), (1105, 13937), (1267, 12155), (1309, 11765), (1547, 9955), (1991, 7735), (2353, 6545), (2431, 6335), (3077, 5005)]