181278080

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{9137}}^1$

素因数の和:9187

約数の個数: 64

約数和(自身を含む): 447396480

約数和(自身を除く): 266118400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9137, 9920, 18274, 19840, 36548, 45685, 73096, 91370, 146192, 182740, 283247, 292384, 365480, 566494, 584768, 730960, 1132988, 1169536, 1416235, 1461920, 2265976, 2832470, 2923840, 4531952, 5664940, 5847680, 9063904, 11329880, 18127808, 22659760, 36255616, 45319520, 90639040, 181278080]

約数ペア:

[(1, 181278080), (2, 90639040), (4, 45319520), (5, 36255616), (8, 22659760), (10, 18127808), (16, 11329880), (20, 9063904), (31, 5847680), (32, 5664940), (40, 4531952), (62, 2923840), (64, 2832470), (80, 2265976), (124, 1461920), (128, 1416235), (155, 1169536), (160, 1132988), (248, 730960), (310, 584768), (320, 566494), (496, 365480), (620, 292384), (640, 283247), (992, 182740), (1240, 146192), (1984, 91370), (2480, 73096), (3968, 45685), (4960, 36548), (9137, 19840), (9920, 18274)]