291240920

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{27067}}^1$

素因数の和:27347

約数の個数: 32

約数和(自身を含む): 657752400

約数和(自身を除く): 366511480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 2152, 2690, 5380, 10760, 27067, 54134, 108268, 135335, 216536, 270670, 541340, 1082680, 7281023, 14562046, 29124092, 36405115, 58248184, 72810230, 145620460, 291240920]

約数ペア:

[(1, 291240920), (2, 145620460), (4, 72810230), (5, 58248184), (8, 36405115), (10, 29124092), (20, 14562046), (40, 7281023), (269, 1082680), (538, 541340), (1076, 270670), (1345, 216536), (2152, 135335), (2690, 108268), (5380, 54134), (10760, 27067)]