19686940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{373}}^1$

素因数の和:431

約数の個数: 96

約数和(自身を含む): 52778880

約数和(自身を除く): 33091940

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 29, 35, 52, 58, 65, 70, 91, 116, 130, 140, 145, 182, 203, 260, 290, 364, 373, 377, 406, 455, 580, 746, 754, 812, 910, 1015, 1492, 1508, 1820, 1865, 1885, 2030, 2611, 2639, 3730, 3770, 4060, 4849, 5222, 5278, 7460, 7540, 9698, 10444, 10556, 10817, 13055, 13195, 19396, 21634, 24245, 26110, 26390, 33943, 43268, 48490, 52220, 52780, 54085, 67886, 75719, 96980, 108170, 135772, 140621, 151438, 169715, 216340, 281242, 302876, 339430, 378595, 562484, 678860, 703105, 757190, 984347, 1406210, 1514380, 1968694, 2812420, 3937388, 4921735, 9843470, 19686940]

約数ペア:

[(1, 19686940), (2, 9843470), (4, 4921735), (5, 3937388), (7, 2812420), (10, 1968694), (13, 1514380), (14, 1406210), (20, 984347), (26, 757190), (28, 703105), (29, 678860), (35, 562484), (52, 378595), (58, 339430), (65, 302876), (70, 281242), (91, 216340), (116, 169715), (130, 151438), (140, 140621), (145, 135772), (182, 108170), (203, 96980), (260, 75719), (290, 67886), (364, 54085), (373, 52780), (377, 52220), (406, 48490), (455, 43268), (580, 33943), (746, 26390), (754, 26110), (812, 24245), (910, 21634), (1015, 19396), (1492, 13195), (1508, 13055), (1820, 10817), (1865, 10556), (1885, 10444), (2030, 9698), (2611, 7540), (2639, 7460), (3730, 5278), (3770, 5222), (4060, 4849)]