156920140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19469}}^1$

素因数の和:19522

約数の個数: 48

約数和(自身を含む): 366347520

約数和(自身を除く): 209427380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 19469, 38938, 77876, 97345, 194690, 253097, 389380, 506194, 603539, 1012388, 1207078, 1265485, 2414156, 2530970, 3017695, 5061940, 6035390, 7846007, 12070780, 15692014, 31384028, 39230035, 78460070, 156920140]

約数ペア:

[(1, 156920140), (2, 78460070), (4, 39230035), (5, 31384028), (10, 15692014), (13, 12070780), (20, 7846007), (26, 6035390), (31, 5061940), (52, 3017695), (62, 2530970), (65, 2414156), (124, 1265485), (130, 1207078), (155, 1012388), (260, 603539), (310, 506194), (403, 389380), (620, 253097), (806, 194690), (1612, 97345), (2015, 77876), (4030, 38938), (8060, 19469)]