77434280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:871

約数の個数: 128

約数和(自身を含む): 224501760

約数和(自身を除く): 147067480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 88, 110, 124, 140, 154, 155, 217, 220, 248, 280, 308, 310, 341, 385, 434, 440, 616, 620, 682, 770, 811, 868, 1085, 1240, 1364, 1540, 1622, 1705, 1736, 2170, 2387, 2728, 3080, 3244, 3410, 4055, 4340, 4774, 5677, 6488, 6820, 8110, 8680, 8921, 9548, 11354, 11935, 13640, 16220, 17842, 19096, 22708, 23870, 25141, 28385, 32440, 35684, 44605, 45416, 47740, 50282, 56770, 62447, 71368, 89210, 95480, 100564, 113540, 124894, 125705, 175987, 178420, 201128, 227080, 249788, 251410, 276551, 312235, 351974, 356840, 499576, 502820, 553102, 624470, 703948, 879935, 1005640, 1106204, 1248940, 1382755, 1407896, 1759870, 1935857, 2212408, 2497880, 2765510, 3519740, 3871714, 5531020, 7039480, 7743428, 9679285, 11062040, 15486856, 19358570, 38717140, 77434280]

約数ペア:

[(1, 77434280), (2, 38717140), (4, 19358570), (5, 15486856), (7, 11062040), (8, 9679285), (10, 7743428), (11, 7039480), (14, 5531020), (20, 3871714), (22, 3519740), (28, 2765510), (31, 2497880), (35, 2212408), (40, 1935857), (44, 1759870), (55, 1407896), (56, 1382755), (62, 1248940), (70, 1106204), (77, 1005640), (88, 879935), (110, 703948), (124, 624470), (140, 553102), (154, 502820), (155, 499576), (217, 356840), (220, 351974), (248, 312235), (280, 276551), (308, 251410), (310, 249788), (341, 227080), (385, 201128), (434, 178420), (440, 175987), (616, 125705), (620, 124894), (682, 113540), (770, 100564), (811, 95480), (868, 89210), (1085, 71368), (1240, 62447), (1364, 56770), (1540, 50282), (1622, 47740), (1705, 45416), (1736, 44605), (2170, 35684), (2387, 32440), (2728, 28385), (3080, 25141), (3244, 23870), (3410, 22708), (4055, 19096), (4340, 17842), (4774, 16220), (5677, 13640), (6488, 11935), (6820, 11354), (8110, 9548), (8680, 8921)]