19495584

素因数分解:

$2^5\times 3^2\times {\mathrm{139}}^1\times {\mathrm{487}}^1$

素因数の和:642

約数の個数: 72

約数和(自身を含む): 55954080

約数和(自身を除く): 36458496

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 139, 144, 278, 288, 417, 487, 556, 834, 974, 1112, 1251, 1461, 1668, 1948, 2224, 2502, 2922, 3336, 3896, 4383, 4448, 5004, 5844, 6672, 7792, 8766, 10008, 11688, 13344, 15584, 17532, 20016, 23376, 35064, 40032, 46752, 67693, 70128, 135386, 140256, 203079, 270772, 406158, 541544, 609237, 812316, 1083088, 1218474, 1624632, 2166176, 2436948, 3249264, 4873896, 6498528, 9747792, 19495584]

約数ペア:

[(1, 19495584), (2, 9747792), (3, 6498528), (4, 4873896), (6, 3249264), (8, 2436948), (9, 2166176), (12, 1624632), (16, 1218474), (18, 1083088), (24, 812316), (32, 609237), (36, 541544), (48, 406158), (72, 270772), (96, 203079), (139, 140256), (144, 135386), (278, 70128), (288, 67693), (417, 46752), (487, 40032), (556, 35064), (834, 23376), (974, 20016), (1112, 17532), (1251, 15584), (1461, 13344), (1668, 11688), (1948, 10008), (2224, 8766), (2502, 7792), (2922, 6672), (3336, 5844), (3896, 5004), (4383, 4448)]