978019910

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{389}}^1\times {\mathrm{733}}^1$

素因数の和:1150

約数の個数: 64

約数和(自身を含む): 2061072000

約数和(自身を除く): 1083052090

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 389, 490, 686, 733, 778, 1466, 1715, 1945, 2723, 3430, 3665, 3890, 5131, 5446, 7330, 10262, 13615, 19061, 25655, 27230, 35917, 38122, 51310, 71834, 95305, 133427, 179585, 190610, 251419, 266854, 285137, 359170, 502838, 570274, 667135, 1257095, 1334270, 1425685, 1995959, 2514190, 2851370, 3991918, 9979795, 13971713, 19959590, 27943426, 69858565, 97801991, 139717130, 195603982, 489009955, 978019910]

約数ペア:

[(1, 978019910), (2, 489009955), (5, 195603982), (7, 139717130), (10, 97801991), (14, 69858565), (35, 27943426), (49, 19959590), (70, 13971713), (98, 9979795), (245, 3991918), (343, 2851370), (389, 2514190), (490, 1995959), (686, 1425685), (733, 1334270), (778, 1257095), (1466, 667135), (1715, 570274), (1945, 502838), (2723, 359170), (3430, 285137), (3665, 266854), (3890, 251419), (5131, 190610), (5446, 179585), (7330, 133427), (10262, 95305), (13615, 71834), (19061, 51310), (25655, 38122), (27230, 35917)]