20199787468

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{347}}^1\times {\mathrm{14957}}^1$

素因数の和:15454

約数の個数: 48

約数和(自身を含む): 40810210560

約数和(自身を除く): 20610423092

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 347, 556, 694, 973, 1388, 1946, 2429, 3892, 4858, 9716, 14957, 29914, 48233, 59828, 96466, 104699, 192932, 209398, 337631, 418796, 675262, 1350524, 2079023, 4158046, 5190079, 8316092, 10380158, 14553161, 20760316, 29106322, 36330553, 58212644, 72661106, 145322212, 721420981, 1442841962, 2885683924, 5049946867, 10099893734, 20199787468]

約数ペア:

[(1, 20199787468), (2, 10099893734), (4, 5049946867), (7, 2885683924), (14, 1442841962), (28, 721420981), (139, 145322212), (278, 72661106), (347, 58212644), (556, 36330553), (694, 29106322), (973, 20760316), (1388, 14553161), (1946, 10380158), (2429, 8316092), (3892, 5190079), (4858, 4158046), (9716, 2079023), (14957, 1350524), (29914, 675262), (48233, 418796), (59828, 337631), (96466, 209398), (104699, 192932)]