8237440

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 20110320

約数和(自身を除く): 11872880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 211, 244, 305, 320, 422, 488, 610, 640, 844, 976, 1055, 1220, 1688, 1952, 2110, 2440, 3376, 3904, 4220, 4880, 6752, 7808, 8440, 9760, 12871, 13504, 16880, 19520, 25742, 27008, 33760, 39040, 51484, 64355, 67520, 102968, 128710, 135040, 205936, 257420, 411872, 514840, 823744, 1029680, 1647488, 2059360, 4118720, 8237440]

約数ペア:

[(1, 8237440), (2, 4118720), (4, 2059360), (5, 1647488), (8, 1029680), (10, 823744), (16, 514840), (20, 411872), (32, 257420), (40, 205936), (61, 135040), (64, 128710), (80, 102968), (122, 67520), (128, 64355), (160, 51484), (211, 39040), (244, 33760), (305, 27008), (320, 25742), (422, 19520), (488, 16880), (610, 13504), (640, 12871), (844, 9760), (976, 8440), (1055, 7808), (1220, 6752), (1688, 4880), (1952, 4220), (2110, 3904), (2440, 3376)]