81878240

素因数分解:

$2^5\times 5^1\times {\mathrm{151}}^1\times {\mathrm{3389}}^1$

素因数の和:3555

約数の個数: 48

約数和(自身を含む): 194775840

約数和(自身を除く): 112897600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 151, 160, 302, 604, 755, 1208, 1510, 2416, 3020, 3389, 4832, 6040, 6778, 12080, 13556, 16945, 24160, 27112, 33890, 54224, 67780, 108448, 135560, 271120, 511739, 542240, 1023478, 2046956, 2558695, 4093912, 5117390, 8187824, 10234780, 16375648, 20469560, 40939120, 81878240]

約数ペア:

[(1, 81878240), (2, 40939120), (4, 20469560), (5, 16375648), (8, 10234780), (10, 8187824), (16, 5117390), (20, 4093912), (32, 2558695), (40, 2046956), (80, 1023478), (151, 542240), (160, 511739), (302, 271120), (604, 135560), (755, 108448), (1208, 67780), (1510, 54224), (2416, 33890), (3020, 27112), (3389, 24160), (4832, 16945), (6040, 13556), (6778, 12080)]