156789220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{1151}}^1$

素因数の和:1313

約数の個数: 72

約数和(自身を含む): 386104320

約数和(自身を除く): 229315100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 139, 140, 196, 245, 278, 490, 556, 695, 973, 980, 1151, 1390, 1946, 2302, 2780, 3892, 4604, 4865, 5755, 6811, 8057, 9730, 11510, 13622, 16114, 19460, 23020, 27244, 32228, 34055, 40285, 56399, 68110, 80570, 112798, 136220, 159989, 161140, 225596, 281995, 319978, 563990, 639956, 799945, 1119923, 1127980, 1599890, 2239846, 3199780, 4479692, 5599615, 7839461, 11199230, 15678922, 22398460, 31357844, 39197305, 78394610, 156789220]

約数ペア:

[(1, 156789220), (2, 78394610), (4, 39197305), (5, 31357844), (7, 22398460), (10, 15678922), (14, 11199230), (20, 7839461), (28, 5599615), (35, 4479692), (49, 3199780), (70, 2239846), (98, 1599890), (139, 1127980), (140, 1119923), (196, 799945), (245, 639956), (278, 563990), (490, 319978), (556, 281995), (695, 225596), (973, 161140), (980, 159989), (1151, 136220), (1390, 112798), (1946, 80570), (2302, 68110), (2780, 56399), (3892, 40285), (4604, 34055), (4865, 32228), (5755, 27244), (6811, 23020), (8057, 19460), (9730, 16114), (11510, 13622)]