66513980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2347}}^1$

素因数の和:2478

約数の個数: 48

約数和(自身を含む): 151868640

約数和(自身を除く): 85354660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1417, 2180, 2347, 2834, 4694, 5668, 7085, 9388, 11735, 14170, 23470, 28340, 30511, 46940, 61022, 122044, 152555, 255823, 305110, 511646, 610220, 1023292, 1279115, 2558230, 3325699, 5116460, 6651398, 13302796, 16628495, 33256990, 66513980]

約数ペア:

[(1, 66513980), (2, 33256990), (4, 16628495), (5, 13302796), (10, 6651398), (13, 5116460), (20, 3325699), (26, 2558230), (52, 1279115), (65, 1023292), (109, 610220), (130, 511646), (218, 305110), (260, 255823), (436, 152555), (545, 122044), (1090, 61022), (1417, 46940), (2180, 30511), (2347, 28340), (2834, 23470), (4694, 14170), (5668, 11735), (7085, 9388)]