18670440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{991}}^1$

素因数の和:1162

約数の個数: 64

約数和(自身を含む): 56424960

約数和(自身を除く): 37754520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 314, 471, 628, 785, 942, 991, 1256, 1570, 1884, 1982, 2355, 2973, 3140, 3768, 3964, 4710, 4955, 5946, 6280, 7928, 9420, 9910, 11892, 14865, 18840, 19820, 23784, 29730, 39640, 59460, 118920, 155587, 311174, 466761, 622348, 777935, 933522, 1244696, 1555870, 1867044, 2333805, 3111740, 3734088, 4667610, 6223480, 9335220, 18670440]

約数ペア:

[(1, 18670440), (2, 9335220), (3, 6223480), (4, 4667610), (5, 3734088), (6, 3111740), (8, 2333805), (10, 1867044), (12, 1555870), (15, 1244696), (20, 933522), (24, 777935), (30, 622348), (40, 466761), (60, 311174), (120, 155587), (157, 118920), (314, 59460), (471, 39640), (628, 29730), (785, 23784), (942, 19820), (991, 18840), (1256, 14865), (1570, 11892), (1884, 9910), (1982, 9420), (2355, 7928), (2973, 6280), (3140, 5946), (3768, 4955), (3964, 4710)]