72401840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{129289}}^1$

素因数の和:129309

約数の個数: 40

約数和(自身を含む): 192383520

約数和(自身を除く): 119981680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 129289, 258578, 517156, 646445, 905023, 1034312, 1292890, 1810046, 2068624, 2585780, 3620092, 4525115, 5171560, 7240184, 9050230, 10343120, 14480368, 18100460, 36200920, 72401840]

約数ペア:

[(1, 72401840), (2, 36200920), (4, 18100460), (5, 14480368), (7, 10343120), (8, 9050230), (10, 7240184), (14, 5171560), (16, 4525115), (20, 3620092), (28, 2585780), (35, 2068624), (40, 1810046), (56, 1292890), (70, 1034312), (80, 905023), (112, 646445), (140, 517156), (280, 258578), (560, 129289)]