161530840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{337}}^1\times {\mathrm{521}}^1$

素因数の和:892

約数の個数: 64

約数和(自身を含む): 381101760

約数和(自身を除く): 219570920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 337, 460, 521, 674, 920, 1042, 1348, 1685, 2084, 2605, 2696, 3370, 4168, 5210, 6740, 7751, 10420, 11983, 13480, 15502, 20840, 23966, 31004, 38755, 47932, 59915, 62008, 77510, 95864, 119830, 155020, 175577, 239660, 310040, 351154, 479320, 702308, 877885, 1404616, 1755770, 3511540, 4038271, 7023080, 8076542, 16153084, 20191355, 32306168, 40382710, 80765420, 161530840]

約数ペア:

[(1, 161530840), (2, 80765420), (4, 40382710), (5, 32306168), (8, 20191355), (10, 16153084), (20, 8076542), (23, 7023080), (40, 4038271), (46, 3511540), (92, 1755770), (115, 1404616), (184, 877885), (230, 702308), (337, 479320), (460, 351154), (521, 310040), (674, 239660), (920, 175577), (1042, 155020), (1348, 119830), (1685, 95864), (2084, 77510), (2605, 62008), (2696, 59915), (3370, 47932), (4168, 38755), (5210, 31004), (6740, 23966), (7751, 20840), (10420, 15502), (11983, 13480)]