12978780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1087}}^1$

素因数の和:1298

約数の個数: 48

約数和(自身を含む): 36556800

約数和(自身を除く): 23578020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 199, 398, 597, 796, 995, 1087, 1194, 1990, 2174, 2388, 2985, 3261, 3980, 4348, 5435, 5970, 6522, 10870, 11940, 13044, 16305, 21740, 32610, 65220, 216313, 432626, 648939, 865252, 1081565, 1297878, 2163130, 2595756, 3244695, 4326260, 6489390, 12978780]

約数ペア:

[(1, 12978780), (2, 6489390), (3, 4326260), (4, 3244695), (5, 2595756), (6, 2163130), (10, 1297878), (12, 1081565), (15, 865252), (20, 648939), (30, 432626), (60, 216313), (199, 65220), (398, 32610), (597, 21740), (796, 16305), (995, 13044), (1087, 11940), (1194, 10870), (1990, 6522), (2174, 5970), (2388, 5435), (2985, 4348), (3261, 3980)]