289308680

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{107951}}^1$

素因数の和:108029

約数の個数: 32

約数和(自身を含む): 660666240

約数和(自身を除く): 371357560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 107951, 215902, 431804, 539755, 863608, 1079510, 2159020, 4318040, 7232717, 14465434, 28930868, 36163585, 57861736, 72327170, 144654340, 289308680]

約数ペア:

[(1, 289308680), (2, 144654340), (4, 72327170), (5, 57861736), (8, 36163585), (10, 28930868), (20, 14465434), (40, 7232717), (67, 4318040), (134, 2159020), (268, 1079510), (335, 863608), (536, 539755), (670, 431804), (1340, 215902), (2680, 107951)]