81315220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{8669}}^1$

素因数の和:8752

約数の個数: 48

約数和(自身を含む): 198092160

約数和(自身を除く): 116776940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 2345, 4690, 8669, 9380, 17338, 34676, 43345, 60683, 86690, 121366, 173380, 242732, 303415, 580823, 606830, 1161646, 1213660, 2323292, 2904115, 4065761, 5808230, 8131522, 11616460, 16263044, 20328805, 40657610, 81315220]

約数ペア:

[(1, 81315220), (2, 40657610), (4, 20328805), (5, 16263044), (7, 11616460), (10, 8131522), (14, 5808230), (20, 4065761), (28, 2904115), (35, 2323292), (67, 1213660), (70, 1161646), (134, 606830), (140, 580823), (268, 303415), (335, 242732), (469, 173380), (670, 121366), (938, 86690), (1340, 60683), (1876, 43345), (2345, 34676), (4690, 17338), (8669, 9380)]