78459980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1\times {\mathrm{463}}^1$

素因数の和:738

約数の個数: 48

約数和(自身を含む): 170325120

約数和(自身を除く): 91865140

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 229, 370, 458, 463, 740, 916, 926, 1145, 1852, 2290, 2315, 4580, 4630, 8473, 9260, 16946, 17131, 33892, 34262, 42365, 68524, 84730, 85655, 106027, 169460, 171310, 212054, 342620, 424108, 530135, 1060270, 2120540, 3922999, 7845998, 15691996, 19614995, 39229990, 78459980]

約数ペア:

[(1, 78459980), (2, 39229990), (4, 19614995), (5, 15691996), (10, 7845998), (20, 3922999), (37, 2120540), (74, 1060270), (148, 530135), (185, 424108), (229, 342620), (370, 212054), (458, 171310), (463, 169460), (740, 106027), (916, 85655), (926, 84730), (1145, 68524), (1852, 42365), (2290, 34262), (2315, 33892), (4580, 17131), (4630, 16946), (8473, 9260)]