1001045380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1\times {\mathrm{1949}}^1$

素因数の和:2440

約数の個数: 48

約数和(自身を含む): 2142831600

約数和(自身を除く): 1141786220

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 421, 610, 842, 1220, 1684, 1949, 2105, 3898, 4210, 7796, 8420, 9745, 19490, 25681, 38980, 51362, 102724, 118889, 128405, 237778, 256810, 475556, 513620, 594445, 820529, 1188890, 1641058, 2377780, 3282116, 4102645, 8205290, 16410580, 50052269, 100104538, 200209076, 250261345, 500522690, 1001045380]

約数ペア:

[(1, 1001045380), (2, 500522690), (4, 250261345), (5, 200209076), (10, 100104538), (20, 50052269), (61, 16410580), (122, 8205290), (244, 4102645), (305, 3282116), (421, 2377780), (610, 1641058), (842, 1188890), (1220, 820529), (1684, 594445), (1949, 513620), (2105, 475556), (3898, 256810), (4210, 237778), (7796, 128405), (8420, 118889), (9745, 102724), (19490, 51362), (25681, 38980)]