1995980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 4898880

約数和(自身を除く): 2902900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 269, 371, 530, 538, 742, 1060, 1076, 1345, 1484, 1855, 1883, 2690, 3710, 3766, 5380, 7420, 7532, 9415, 14257, 18830, 28514, 37660, 57028, 71285, 99799, 142570, 199598, 285140, 399196, 498995, 997990, 1995980]

約数ペア:

[(1, 1995980), (2, 997990), (4, 498995), (5, 399196), (7, 285140), (10, 199598), (14, 142570), (20, 99799), (28, 71285), (35, 57028), (53, 37660), (70, 28514), (106, 18830), (140, 14257), (212, 9415), (265, 7532), (269, 7420), (371, 5380), (530, 3766), (538, 3710), (742, 2690), (1060, 1883), (1076, 1855), (1345, 1484)]