40218520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:436

約数の個数: 64

約数和(自身を含む): 94011840

約数和(自身を除く): 53793320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 61, 106, 122, 212, 244, 265, 305, 311, 424, 488, 530, 610, 622, 1060, 1220, 1244, 1555, 2120, 2440, 2488, 3110, 3233, 6220, 6466, 12440, 12932, 16165, 16483, 18971, 25864, 32330, 32966, 37942, 64660, 65932, 75884, 82415, 94855, 129320, 131864, 151768, 164830, 189710, 329660, 379420, 659320, 758840, 1005463, 2010926, 4021852, 5027315, 8043704, 10054630, 20109260, 40218520]

約数ペア:

[(1, 40218520), (2, 20109260), (4, 10054630), (5, 8043704), (8, 5027315), (10, 4021852), (20, 2010926), (40, 1005463), (53, 758840), (61, 659320), (106, 379420), (122, 329660), (212, 189710), (244, 164830), (265, 151768), (305, 131864), (311, 129320), (424, 94855), (488, 82415), (530, 75884), (610, 65932), (622, 64660), (1060, 37942), (1220, 32966), (1244, 32330), (1555, 25864), (2120, 18971), (2440, 16483), (2488, 16165), (3110, 12932), (3233, 12440), (6220, 6466)]