20178091518

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1\times {\mathrm{19009}}^1$

素因数の和:19497

約数の個数: 64

約数和(自身を含む): 44967014400

約数和(自身を除く): 24788922882

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 439, 806, 878, 1209, 1317, 2418, 2634, 5707, 11414, 13609, 17121, 19009, 27218, 34242, 38018, 40827, 57027, 81654, 114054, 176917, 247117, 353834, 494234, 530751, 589279, 741351, 1061502, 1178558, 1482702, 1767837, 3535674, 7660627, 8344951, 15321254, 16689902, 22981881, 25034853, 45963762, 50069706, 108484363, 216968726, 258693481, 325453089, 517386962, 650906178, 776080443, 1552160886, 3363015253, 6726030506, 10089045759, 20178091518]

約数ペア:

[(1, 20178091518), (2, 10089045759), (3, 6726030506), (6, 3363015253), (13, 1552160886), (26, 776080443), (31, 650906178), (39, 517386962), (62, 325453089), (78, 258693481), (93, 216968726), (186, 108484363), (403, 50069706), (439, 45963762), (806, 25034853), (878, 22981881), (1209, 16689902), (1317, 15321254), (2418, 8344951), (2634, 7660627), (5707, 3535674), (11414, 1767837), (13609, 1482702), (17121, 1178558), (19009, 1061502), (27218, 741351), (34242, 589279), (38018, 530751), (40827, 494234), (57027, 353834), (81654, 247117), (114054, 176917)]