18720630

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2633}}^1$

素因数の和:2725

約数の個数: 48

約数和(自身を含む): 49308480

約数和(自身を除く): 30587850

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 79, 90, 158, 237, 395, 474, 711, 790, 1185, 1422, 2370, 2633, 3555, 5266, 7110, 7899, 13165, 15798, 23697, 26330, 39495, 47394, 78990, 118485, 208007, 236970, 416014, 624021, 1040035, 1248042, 1872063, 2080070, 3120105, 3744126, 6240210, 9360315, 18720630]

約数ペア:

[(1, 18720630), (2, 9360315), (3, 6240210), (5, 3744126), (6, 3120105), (9, 2080070), (10, 1872063), (15, 1248042), (18, 1040035), (30, 624021), (45, 416014), (79, 236970), (90, 208007), (158, 118485), (237, 78990), (395, 47394), (474, 39495), (711, 26330), (790, 23697), (1185, 15798), (1422, 13165), (2370, 7899), (2633, 7110), (3555, 5266)]