78799640

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^2\times {\mathrm{1439}}^1$

素因数の和:1524

約数の個数: 48

約数和(自身を含む): 182347200

約数和(自身を除く): 103547560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1369, 1439, 1480, 2738, 2878, 5476, 5756, 6845, 7195, 10952, 11512, 13690, 14390, 27380, 28780, 53243, 54760, 57560, 106486, 212972, 266215, 425944, 532430, 1064860, 1969991, 2129720, 3939982, 7879964, 9849955, 15759928, 19699910, 39399820, 78799640]

約数ペア:

[(1, 78799640), (2, 39399820), (4, 19699910), (5, 15759928), (8, 9849955), (10, 7879964), (20, 3939982), (37, 2129720), (40, 1969991), (74, 1064860), (148, 532430), (185, 425944), (296, 266215), (370, 212972), (740, 106486), (1369, 57560), (1439, 54760), (1480, 53243), (2738, 28780), (2878, 27380), (5476, 14390), (5756, 13690), (6845, 11512), (7195, 10952)]