78176745

素因数分解:

$3^5\times 5^1\times {\mathrm{37}}^2\times {\mathrm{47}}^1$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 147498624

約数和(自身を除く): 69321879

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 47, 81, 111, 135, 141, 185, 235, 243, 333, 405, 423, 555, 705, 999, 1215, 1269, 1369, 1665, 1739, 2115, 2997, 3807, 4107, 4995, 5217, 6345, 6845, 8695, 8991, 11421, 12321, 14985, 15651, 19035, 20535, 26085, 36963, 44955, 46953, 57105, 61605, 64343, 78255, 110889, 140859, 184815, 193029, 234765, 321715, 332667, 422577, 554445, 579087, 704295, 965145, 1663335, 1737261, 2112885, 2895435, 5211783, 8686305, 15635349, 26058915, 78176745]

約数ペア:

[(1, 78176745), (3, 26058915), (5, 15635349), (9, 8686305), (15, 5211783), (27, 2895435), (37, 2112885), (45, 1737261), (47, 1663335), (81, 965145), (111, 704295), (135, 579087), (141, 554445), (185, 422577), (235, 332667), (243, 321715), (333, 234765), (405, 193029), (423, 184815), (555, 140859), (705, 110889), (999, 78255), (1215, 64343), (1269, 61605), (1369, 57105), (1665, 46953), (1739, 44955), (2115, 36963), (2997, 26085), (3807, 20535), (4107, 19035), (4995, 15651), (5217, 14985), (6345, 12321), (6845, 11421), (8695, 8991)]