257875320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{5413}}^1$

素因数の和:5824

約数の個数: 64

約数和(自身を含む): 775717920

約数和(自身を除く): 517842600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 397, 794, 1191, 1588, 1985, 2382, 3176, 3970, 4764, 5413, 5955, 7940, 9528, 10826, 11910, 15880, 16239, 21652, 23820, 27065, 32478, 43304, 47640, 54130, 64956, 81195, 108260, 129912, 162390, 216520, 324780, 649560, 2148961, 4297922, 6446883, 8595844, 10744805, 12893766, 17191688, 21489610, 25787532, 32234415, 42979220, 51575064, 64468830, 85958440, 128937660, 257875320]

約数ペア:

[(1, 257875320), (2, 128937660), (3, 85958440), (4, 64468830), (5, 51575064), (6, 42979220), (8, 32234415), (10, 25787532), (12, 21489610), (15, 17191688), (20, 12893766), (24, 10744805), (30, 8595844), (40, 6446883), (60, 4297922), (120, 2148961), (397, 649560), (794, 324780), (1191, 216520), (1588, 162390), (1985, 129912), (2382, 108260), (3176, 81195), (3970, 64956), (4764, 54130), (5413, 47640), (5955, 43304), (7940, 32478), (9528, 27065), (10826, 23820), (11910, 21652), (15880, 16239)]