80403680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{71789}}^1$

素因数の和:71811

約数の個数: 48

約数和(自身を含む): 217092960

約数和(自身を除く): 136689280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 71789, 143578, 287156, 358945, 502523, 574312, 717890, 1005046, 1148624, 1435780, 2010092, 2297248, 2512615, 2871560, 4020184, 5025230, 5743120, 8040368, 10050460, 11486240, 16080736, 20100920, 40201840, 80403680]

約数ペア:

[(1, 80403680), (2, 40201840), (4, 20100920), (5, 16080736), (7, 11486240), (8, 10050460), (10, 8040368), (14, 5743120), (16, 5025230), (20, 4020184), (28, 2871560), (32, 2512615), (35, 2297248), (40, 2010092), (56, 1435780), (70, 1148624), (80, 1005046), (112, 717890), (140, 574312), (160, 502523), (224, 358945), (280, 287156), (560, 143578), (1120, 71789)]