12991615408

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1378567}}^1$

素因数の和:1378625

約数の個数: 40

約数和(自身を含む): 27350789120

約数和(自身を除く): 14359173712

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2356, 4712, 9424, 1378567, 2757134, 5514268, 11028536, 22057072, 26192773, 42735577, 52385546, 85471154, 104771092, 170942308, 209542184, 341884616, 419084368, 683769232, 811975963, 1623951926, 3247903852, 6495807704, 12991615408]

約数ペア:

[(1, 12991615408), (2, 6495807704), (4, 3247903852), (8, 1623951926), (16, 811975963), (19, 683769232), (31, 419084368), (38, 341884616), (62, 209542184), (76, 170942308), (124, 104771092), (152, 85471154), (248, 52385546), (304, 42735577), (496, 26192773), (589, 22057072), (1178, 11028536), (2356, 5514268), (4712, 2757134), (9424, 1378567)]