13306780280

素因数分解:

$2^3\times 5^1\times {\mathrm{17749}}^1\times {\mathrm{18743}}^1$

素因数の和:36503

約数の個数: 32

約数和(自身を含む): 29943540000

約数和(自身を除く): 16636759720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 17749, 18743, 35498, 37486, 70996, 74972, 88745, 93715, 141992, 149944, 177490, 187430, 354980, 374860, 709960, 749720, 332669507, 665339014, 1330678028, 1663347535, 2661356056, 3326695070, 6653390140, 13306780280]

約数ペア:

[(1, 13306780280), (2, 6653390140), (4, 3326695070), (5, 2661356056), (8, 1663347535), (10, 1330678028), (20, 665339014), (40, 332669507), (17749, 749720), (18743, 709960), (35498, 374860), (37486, 354980), (70996, 187430), (74972, 177490), (88745, 149944), (93715, 141992)]