19929390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{373}}^1$

素因数の和:533

約数の個数: 64

約数和(自身を含む): 52024896

約数和(自身を除く): 32095506

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 137, 195, 274, 373, 390, 411, 685, 746, 822, 1119, 1370, 1781, 1865, 2055, 2238, 3562, 3730, 4110, 4849, 5343, 5595, 8905, 9698, 10686, 11190, 14547, 17810, 24245, 26715, 29094, 48490, 51101, 53430, 72735, 102202, 145470, 153303, 255505, 306606, 511010, 664313, 766515, 1328626, 1533030, 1992939, 3321565, 3985878, 6643130, 9964695, 19929390]

約数ペア:

[(1, 19929390), (2, 9964695), (3, 6643130), (5, 3985878), (6, 3321565), (10, 1992939), (13, 1533030), (15, 1328626), (26, 766515), (30, 664313), (39, 511010), (65, 306606), (78, 255505), (130, 153303), (137, 145470), (195, 102202), (274, 72735), (373, 53430), (390, 51101), (411, 48490), (685, 29094), (746, 26715), (822, 24245), (1119, 17810), (1370, 14547), (1781, 11190), (1865, 10686), (2055, 9698), (2238, 8905), (3562, 5595), (3730, 5343), (4110, 4849)]