80159300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:537

約数の個数: 72

約数和(自身を含む): 188878536

約数和(自身を除く): 108719236

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 197, 260, 313, 325, 394, 626, 650, 788, 985, 1252, 1300, 1565, 1970, 2561, 3130, 3940, 4069, 4925, 5122, 6260, 7825, 8138, 9850, 10244, 12805, 15650, 16276, 19700, 20345, 25610, 31300, 40690, 51220, 61661, 64025, 81380, 101725, 123322, 128050, 203450, 246644, 256100, 308305, 406900, 616610, 801593, 1233220, 1541525, 1603186, 3083050, 3206372, 4007965, 6166100, 8015930, 16031860, 20039825, 40079650, 80159300]

約数ペア:

[(1, 80159300), (2, 40079650), (4, 20039825), (5, 16031860), (10, 8015930), (13, 6166100), (20, 4007965), (25, 3206372), (26, 3083050), (50, 1603186), (52, 1541525), (65, 1233220), (100, 801593), (130, 616610), (197, 406900), (260, 308305), (313, 256100), (325, 246644), (394, 203450), (626, 128050), (650, 123322), (788, 101725), (985, 81380), (1252, 64025), (1300, 61661), (1565, 51220), (1970, 40690), (2561, 31300), (3130, 25610), (3940, 20345), (4069, 19700), (4925, 16276), (5122, 15650), (6260, 12805), (7825, 10244), (8138, 9850)]