81180160

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1669}}^1$

素因数の和:1711

約数の個数: 80

約数和(自身を含む): 205009200

約数和(自身を除く): 123829040

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 512, 608, 640, 760, 1216, 1280, 1520, 1669, 2432, 2560, 3040, 3338, 4864, 6080, 6676, 8345, 9728, 12160, 13352, 16690, 24320, 26704, 31711, 33380, 48640, 53408, 63422, 66760, 106816, 126844, 133520, 158555, 213632, 253688, 267040, 317110, 427264, 507376, 534080, 634220, 854528, 1014752, 1068160, 1268440, 2029504, 2136320, 2536880, 4059008, 4272640, 5073760, 8118016, 10147520, 16236032, 20295040, 40590080, 81180160]

約数ペア:

[(1, 81180160), (2, 40590080), (4, 20295040), (5, 16236032), (8, 10147520), (10, 8118016), (16, 5073760), (19, 4272640), (20, 4059008), (32, 2536880), (38, 2136320), (40, 2029504), (64, 1268440), (76, 1068160), (80, 1014752), (95, 854528), (128, 634220), (152, 534080), (160, 507376), (190, 427264), (256, 317110), (304, 267040), (320, 253688), (380, 213632), (512, 158555), (608, 133520), (640, 126844), (760, 106816), (1216, 66760), (1280, 63422), (1520, 53408), (1669, 48640), (2432, 33380), (2560, 31711), (3040, 26704), (3338, 24320), (4864, 16690), (6080, 13352), (6676, 12160), (8345, 9728)]