1999091384

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1\times {\mathrm{661}}^1$

素因数の和:984

約数の個数: 64

約数和(自身を含む): 4010925600

約数和(自身を除く): 2011834216

約数列:

[1, 2, 4, 8, 19, 38, 76, 101, 152, 197, 202, 394, 404, 661, 788, 808, 1322, 1576, 1919, 2644, 3743, 3838, 5288, 7486, 7676, 12559, 14972, 15352, 19897, 25118, 29944, 39794, 50236, 66761, 79588, 100472, 130217, 133522, 159176, 260434, 267044, 378043, 520868, 534088, 756086, 1041736, 1268459, 1512172, 2474123, 2536918, 3024344, 4948246, 5073836, 9896492, 10147672, 13151917, 19792984, 26303834, 52607668, 105215336, 249886423, 499772846, 999545692, 1999091384]

約数ペア:

[(1, 1999091384), (2, 999545692), (4, 499772846), (8, 249886423), (19, 105215336), (38, 52607668), (76, 26303834), (101, 19792984), (152, 13151917), (197, 10147672), (202, 9896492), (394, 5073836), (404, 4948246), (661, 3024344), (788, 2536918), (808, 2474123), (1322, 1512172), (1576, 1268459), (1919, 1041736), (2644, 756086), (3743, 534088), (3838, 520868), (5288, 378043), (7486, 267044), (7676, 260434), (12559, 159176), (14972, 133522), (15352, 130217), (19897, 100472), (25118, 79588), (29944, 66761), (39794, 50236)]