20836174528

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{61231}}^1$

素因数の和:61665

約数の個数: 56

約数和(自身を含む): 44636903360

約数和(自身を除く): 23800728832

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 409, 416, 818, 832, 1636, 3272, 5317, 6544, 10634, 13088, 21268, 26176, 42536, 61231, 85072, 122462, 170144, 244924, 340288, 489848, 796003, 979696, 1592006, 1959392, 3184012, 3918784, 6368024, 12736048, 25043479, 25472096, 50086958, 50944192, 100173916, 200347832, 325565227, 400695664, 651130454, 801391328, 1302260908, 1602782656, 2604521816, 5209043632, 10418087264, 20836174528]

約数ペア:

[(1, 20836174528), (2, 10418087264), (4, 5209043632), (8, 2604521816), (13, 1602782656), (16, 1302260908), (26, 801391328), (32, 651130454), (52, 400695664), (64, 325565227), (104, 200347832), (208, 100173916), (409, 50944192), (416, 50086958), (818, 25472096), (832, 25043479), (1636, 12736048), (3272, 6368024), (5317, 3918784), (6544, 3184012), (10634, 1959392), (13088, 1592006), (21268, 979696), (26176, 796003), (42536, 489848), (61231, 340288), (85072, 244924), (122462, 170144)]