81661590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{179}}^1$

素因数の和:366

約数の個数: 96

約数和(自身を含む): 220877280

約数和(自身を除く): 139215690

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 37, 45, 74, 90, 111, 137, 179, 185, 222, 274, 333, 358, 370, 411, 537, 555, 666, 685, 822, 895, 1074, 1110, 1233, 1370, 1611, 1665, 1790, 2055, 2466, 2685, 3222, 3330, 4110, 5069, 5370, 6165, 6623, 8055, 10138, 12330, 13246, 15207, 16110, 19869, 24523, 25345, 30414, 33115, 39738, 45621, 49046, 50690, 59607, 66230, 73569, 76035, 91242, 99345, 119214, 122615, 147138, 152070, 198690, 220707, 228105, 245230, 298035, 367845, 441414, 456210, 596070, 735690, 907351, 1103535, 1814702, 2207070, 2722053, 4536755, 5444106, 8166159, 9073510, 13610265, 16332318, 27220530, 40830795, 81661590]

約数ペア:

[(1, 81661590), (2, 40830795), (3, 27220530), (5, 16332318), (6, 13610265), (9, 9073510), (10, 8166159), (15, 5444106), (18, 4536755), (30, 2722053), (37, 2207070), (45, 1814702), (74, 1103535), (90, 907351), (111, 735690), (137, 596070), (179, 456210), (185, 441414), (222, 367845), (274, 298035), (333, 245230), (358, 228105), (370, 220707), (411, 198690), (537, 152070), (555, 147138), (666, 122615), (685, 119214), (822, 99345), (895, 91242), (1074, 76035), (1110, 73569), (1233, 66230), (1370, 59607), (1611, 50690), (1665, 49046), (1790, 45621), (2055, 39738), (2466, 33115), (2685, 30414), (3222, 25345), (3330, 24523), (4110, 19869), (5069, 16110), (5370, 15207), (6165, 13246), (6623, 12330), (8055, 10138)]