81489590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{601}}^1$

素因数の和:777

約数の個数: 64

約数和(自身を含む): 182044800

約数和(自身を除く): 100555210

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 149, 182, 298, 455, 601, 745, 910, 1043, 1202, 1490, 1937, 2086, 3005, 3874, 4207, 5215, 6010, 7813, 8414, 9685, 10430, 13559, 15626, 19370, 21035, 27118, 39065, 42070, 54691, 67795, 78130, 89549, 109382, 135590, 179098, 273455, 447745, 546910, 626843, 895490, 1164137, 1253686, 2328274, 3134215, 5820685, 6268430, 8148959, 11641370, 16297918, 40744795, 81489590]

約数ペア:

[(1, 81489590), (2, 40744795), (5, 16297918), (7, 11641370), (10, 8148959), (13, 6268430), (14, 5820685), (26, 3134215), (35, 2328274), (65, 1253686), (70, 1164137), (91, 895490), (130, 626843), (149, 546910), (182, 447745), (298, 273455), (455, 179098), (601, 135590), (745, 109382), (910, 89549), (1043, 78130), (1202, 67795), (1490, 54691), (1937, 42070), (2086, 39065), (3005, 27118), (3874, 21035), (4207, 19370), (5215, 15626), (6010, 13559), (7813, 10430), (8414, 9685)]