19281129520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1\times {\mathrm{16231}}^1$

素因数の和:16754

約数の個数: 80

約数和(自身を含む): 46374174720

約数和(自身を除く): 27093045200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 479, 496, 620, 958, 1240, 1916, 2395, 2480, 3832, 4790, 7664, 9580, 14849, 16231, 19160, 29698, 32462, 38320, 59396, 64924, 74245, 81155, 118792, 129848, 148490, 162310, 237584, 259696, 296980, 324620, 503161, 593960, 649240, 1006322, 1187920, 1298480, 2012644, 2515805, 4025288, 5031610, 7774649, 8050576, 10063220, 15549298, 20126440, 31098596, 38873245, 40252880, 62197192, 77746490, 124394384, 155492980, 241014119, 310985960, 482028238, 621971920, 964056476, 1205070595, 1928112952, 2410141190, 3856225904, 4820282380, 9640564760, 19281129520]

約数ペア:

[(1, 19281129520), (2, 9640564760), (4, 4820282380), (5, 3856225904), (8, 2410141190), (10, 1928112952), (16, 1205070595), (20, 964056476), (31, 621971920), (40, 482028238), (62, 310985960), (80, 241014119), (124, 155492980), (155, 124394384), (248, 77746490), (310, 62197192), (479, 40252880), (496, 38873245), (620, 31098596), (958, 20126440), (1240, 15549298), (1916, 10063220), (2395, 8050576), (2480, 7774649), (3832, 5031610), (4790, 4025288), (7664, 2515805), (9580, 2012644), (14849, 1298480), (16231, 1187920), (19160, 1006322), (29698, 649240), (32462, 593960), (38320, 503161), (59396, 324620), (64924, 296980), (74245, 259696), (81155, 237584), (118792, 162310), (129848, 148490)]