177173840

素因数分解:

$2^4\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{1997}}^1$

素因数の和:3119

約数の個数: 40

約数和(自身を含む): 412507080

約数和(自身を除く): 235333240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1109, 1997, 2218, 3994, 4436, 5545, 7988, 8872, 9985, 11090, 15976, 17744, 19970, 22180, 31952, 39940, 44360, 79880, 88720, 159760, 2214673, 4429346, 8858692, 11073365, 17717384, 22146730, 35434768, 44293460, 88586920, 177173840]

約数ペア:

[(1, 177173840), (2, 88586920), (4, 44293460), (5, 35434768), (8, 22146730), (10, 17717384), (16, 11073365), (20, 8858692), (40, 4429346), (80, 2214673), (1109, 159760), (1997, 88720), (2218, 79880), (3994, 44360), (4436, 39940), (5545, 31952), (7988, 22180), (8872, 19970), (9985, 17744), (11090, 15976)]