161775180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{128393}}^1$

素因数の和:128415

約数の個数: 72

約数和(自身を含む): 560824992

約数和(自身を除く): 399049812

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 128393, 256786, 385179, 513572, 641965, 770358, 898751, 1155537, 1283930, 1540716, 1797502, 1925895, 2311074, 2567860, 2696253, 3595004, 3851790, 4493755, 4622148, 5392506, 5777685, 7703580, 8088759, 8987510, 10785012, 11555370, 13481265, 16177518, 17975020, 23110740, 26962530, 32355036, 40443795, 53925060, 80887590, 161775180]

約数ペア:

[(1, 161775180), (2, 80887590), (3, 53925060), (4, 40443795), (5, 32355036), (6, 26962530), (7, 23110740), (9, 17975020), (10, 16177518), (12, 13481265), (14, 11555370), (15, 10785012), (18, 8987510), (20, 8088759), (21, 7703580), (28, 5777685), (30, 5392506), (35, 4622148), (36, 4493755), (42, 3851790), (45, 3595004), (60, 2696253), (63, 2567860), (70, 2311074), (84, 1925895), (90, 1797502), (105, 1540716), (126, 1283930), (140, 1155537), (180, 898751), (210, 770358), (252, 641965), (315, 513572), (420, 385179), (630, 256786), (1260, 128393)]