4947980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{449}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 11340000

約数和(自身を除く): 6392020

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 449, 551, 580, 898, 1102, 1796, 2204, 2245, 2755, 4490, 5510, 8531, 8980, 11020, 13021, 17062, 26042, 34124, 42655, 52084, 65105, 85310, 130210, 170620, 247399, 260420, 494798, 989596, 1236995, 2473990, 4947980]

約数ペア:

[(1, 4947980), (2, 2473990), (4, 1236995), (5, 989596), (10, 494798), (19, 260420), (20, 247399), (29, 170620), (38, 130210), (58, 85310), (76, 65105), (95, 52084), (116, 42655), (145, 34124), (190, 26042), (290, 17062), (380, 13021), (449, 11020), (551, 8980), (580, 8531), (898, 5510), (1102, 4490), (1796, 2755), (2204, 2245)]