1994452880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{508789}}^1$

素因数の和:508816

約数の個数: 60

約数和(自身を含む): 5394191580

約数和(自身を除く): 3399738700

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 508789, 1017578, 2035156, 2543945, 3561523, 4070312, 5087890, 7123046, 8140624, 10175780, 14246092, 17807615, 20351560, 24930661, 28492184, 35615230, 40703120, 49861322, 56984368, 71230460, 99722644, 124653305, 142460920, 199445288, 249306610, 284921840, 398890576, 498613220, 997226440, 1994452880]

約数ペア:

[(1, 1994452880), (2, 997226440), (4, 498613220), (5, 398890576), (7, 284921840), (8, 249306610), (10, 199445288), (14, 142460920), (16, 124653305), (20, 99722644), (28, 71230460), (35, 56984368), (40, 49861322), (49, 40703120), (56, 35615230), (70, 28492184), (80, 24930661), (98, 20351560), (112, 17807615), (140, 14246092), (196, 10175780), (245, 8140624), (280, 7123046), (392, 5087890), (490, 4070312), (560, 3561523), (784, 2543945), (980, 2035156), (1960, 1017578), (3920, 508789)]