20857575690

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{4729609}}^1$

素因数の和:4729636

約数の個数: 72

約数和(自身を含む): 63083538180

約数和(自身を除く): 42225962490

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 4729609, 9459218, 14188827, 23648045, 28377654, 33107263, 42566481, 47296090, 66214526, 70944135, 85132962, 99321789, 141888270, 165536315, 198643578, 212832405, 231750841, 297965367, 331072630, 425664810, 463501682, 496608945, 595930734, 695252523, 993217890, 1158754205, 1390505046, 1489826835, 2085757569, 2317508410, 2979653670, 3476262615, 4171515138, 6952525230, 10428787845, 20857575690]

約数ペア:

[(1, 20857575690), (2, 10428787845), (3, 6952525230), (5, 4171515138), (6, 3476262615), (7, 2979653670), (9, 2317508410), (10, 2085757569), (14, 1489826835), (15, 1390505046), (18, 1158754205), (21, 993217890), (30, 695252523), (35, 595930734), (42, 496608945), (45, 463501682), (49, 425664810), (63, 331072630), (70, 297965367), (90, 231750841), (98, 212832405), (105, 198643578), (126, 165536315), (147, 141888270), (210, 99321789), (245, 85132962), (294, 70944135), (315, 66214526), (441, 47296090), (490, 42566481), (630, 33107263), (735, 28377654), (882, 23648045), (1470, 14188827), (2205, 9459218), (4410, 4729609)]