81068155

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 126904320

約数和(自身を除く): 45836165

約数列:

[1, 5, 7, 17, 19, 35, 71, 85, 95, 101, 119, 133, 323, 355, 497, 505, 595, 665, 707, 1207, 1349, 1615, 1717, 1919, 2261, 2485, 3535, 6035, 6745, 7171, 8449, 8585, 9443, 9595, 11305, 12019, 13433, 22933, 32623, 35855, 42245, 47215, 50197, 60095, 67165, 114665, 121907, 136249, 160531, 163115, 228361, 250985, 609535, 681245, 802655, 853349, 953743, 1141805, 2316233, 4266745, 4768715, 11581165, 16213631, 81068155]

約数ペア:

[(1, 81068155), (5, 16213631), (7, 11581165), (17, 4768715), (19, 4266745), (35, 2316233), (71, 1141805), (85, 953743), (95, 853349), (101, 802655), (119, 681245), (133, 609535), (323, 250985), (355, 228361), (497, 163115), (505, 160531), (595, 136249), (665, 121907), (707, 114665), (1207, 67165), (1349, 60095), (1615, 50197), (1717, 47215), (1919, 42245), (2261, 35855), (2485, 32623), (3535, 22933), (6035, 13433), (6745, 12019), (7171, 11305), (8449, 9595), (8585, 9443)]