155776820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1\times {\mathrm{1117}}^1$

素因数の和:1512

約数の個数: 48

約数和(自身を含む): 345596160

約数和(自身を除く): 189819340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 367, 380, 734, 1117, 1468, 1835, 2234, 3670, 4468, 5585, 6973, 7340, 11170, 13946, 21223, 22340, 27892, 34865, 42446, 69730, 84892, 106115, 139460, 212230, 409939, 424460, 819878, 1639756, 2049695, 4099390, 7788841, 8198780, 15577682, 31155364, 38944205, 77888410, 155776820]

約数ペア:

[(1, 155776820), (2, 77888410), (4, 38944205), (5, 31155364), (10, 15577682), (19, 8198780), (20, 7788841), (38, 4099390), (76, 2049695), (95, 1639756), (190, 819878), (367, 424460), (380, 409939), (734, 212230), (1117, 139460), (1468, 106115), (1835, 84892), (2234, 69730), (3670, 42446), (4468, 34865), (5585, 27892), (6973, 22340), (7340, 21223), (11170, 13946)]