211031860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{42719}}^1$

素因数の和:42760

約数の個数: 48

約数和(自身を含む): 502387200

約数和(自身を除く): 291355340

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 42719, 85438, 170876, 213595, 427190, 555347, 811661, 854380, 1110694, 1623322, 2221388, 2776735, 3246644, 4058305, 5553470, 8116610, 10551593, 11106940, 16233220, 21103186, 42206372, 52757965, 105515930, 211031860]

約数ペア:

[(1, 211031860), (2, 105515930), (4, 52757965), (5, 42206372), (10, 21103186), (13, 16233220), (19, 11106940), (20, 10551593), (26, 8116610), (38, 5553470), (52, 4058305), (65, 3246644), (76, 2776735), (95, 2221388), (130, 1623322), (190, 1110694), (247, 854380), (260, 811661), (380, 555347), (494, 427190), (988, 213595), (1235, 170876), (2470, 85438), (4940, 42719)]