30880940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1439}}^1$

素因数の和:1514

約数の個数: 48

約数和(自身を含む): 68947200

約数和(自身を除く): 38066260

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 116, 145, 148, 185, 290, 370, 580, 740, 1073, 1439, 2146, 2878, 4292, 5365, 5756, 7195, 10730, 14390, 21460, 28780, 41731, 53243, 83462, 106486, 166924, 208655, 212972, 266215, 417310, 532430, 834620, 1064860, 1544047, 3088094, 6176188, 7720235, 15440470, 30880940]

約数ペア:

[(1, 30880940), (2, 15440470), (4, 7720235), (5, 6176188), (10, 3088094), (20, 1544047), (29, 1064860), (37, 834620), (58, 532430), (74, 417310), (116, 266215), (145, 212972), (148, 208655), (185, 166924), (290, 106486), (370, 83462), (580, 53243), (740, 41731), (1073, 28780), (1439, 21460), (2146, 14390), (2878, 10730), (4292, 7195), (5365, 5756)]