20295040

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1669}}^1$

素因数の和:1707

約数の個数: 64

約数和(自身を含む): 51102000

約数和(自身を除く): 30806960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 1669, 2432, 3040, 3338, 6080, 6676, 8345, 12160, 13352, 16690, 26704, 31711, 33380, 53408, 63422, 66760, 106816, 126844, 133520, 158555, 213632, 253688, 267040, 317110, 507376, 534080, 634220, 1014752, 1068160, 1268440, 2029504, 2536880, 4059008, 5073760, 10147520, 20295040]

約数ペア:

[(1, 20295040), (2, 10147520), (4, 5073760), (5, 4059008), (8, 2536880), (10, 2029504), (16, 1268440), (19, 1068160), (20, 1014752), (32, 634220), (38, 534080), (40, 507376), (64, 317110), (76, 267040), (80, 253688), (95, 213632), (128, 158555), (152, 133520), (160, 126844), (190, 106816), (304, 66760), (320, 63422), (380, 53408), (608, 33380), (640, 31711), (760, 26704), (1216, 16690), (1520, 13352), (1669, 12160), (2432, 8345), (3040, 6676), (3338, 6080)]