120001840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{509}}^1$

素因数の和:950

約数の個数: 80

約数和(自身を含む): 320247360

約数和(自身を除く): 200245520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 421, 509, 560, 842, 1018, 1684, 2036, 2105, 2545, 2947, 3368, 3563, 4072, 4210, 5090, 5894, 6736, 7126, 8144, 8420, 10180, 11788, 14252, 14735, 16840, 17815, 20360, 23576, 28504, 29470, 33680, 35630, 40720, 47152, 57008, 58940, 71260, 117880, 142520, 214289, 235760, 285040, 428578, 857156, 1071445, 1500023, 1714312, 2142890, 3000046, 3428624, 4285780, 6000092, 7500115, 8571560, 12000184, 15000230, 17143120, 24000368, 30000460, 60000920, 120001840]

約数ペア:

[(1, 120001840), (2, 60000920), (4, 30000460), (5, 24000368), (7, 17143120), (8, 15000230), (10, 12000184), (14, 8571560), (16, 7500115), (20, 6000092), (28, 4285780), (35, 3428624), (40, 3000046), (56, 2142890), (70, 1714312), (80, 1500023), (112, 1071445), (140, 857156), (280, 428578), (421, 285040), (509, 235760), (560, 214289), (842, 142520), (1018, 117880), (1684, 71260), (2036, 58940), (2105, 57008), (2545, 47152), (2947, 40720), (3368, 35630), (3563, 33680), (4072, 29470), (4210, 28504), (5090, 23576), (5894, 20360), (6736, 17815), (7126, 16840), (8144, 14735), (8420, 14252), (10180, 11788)]