15718220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:439

約数の個数: 72

約数和(自身を含む): 39395664

約数和(自身を除く): 23677444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 373, 430, 490, 602, 746, 860, 980, 1204, 1492, 1505, 1865, 2107, 2611, 3010, 3730, 4214, 5222, 6020, 7460, 8428, 10444, 10535, 13055, 16039, 18277, 21070, 26110, 32078, 36554, 42140, 52220, 64156, 73108, 80195, 91385, 112273, 160390, 182770, 224546, 320780, 365540, 449092, 561365, 785911, 1122730, 1571822, 2245460, 3143644, 3929555, 7859110, 15718220]

約数ペア:

[(1, 15718220), (2, 7859110), (4, 3929555), (5, 3143644), (7, 2245460), (10, 1571822), (14, 1122730), (20, 785911), (28, 561365), (35, 449092), (43, 365540), (49, 320780), (70, 224546), (86, 182770), (98, 160390), (140, 112273), (172, 91385), (196, 80195), (215, 73108), (245, 64156), (301, 52220), (373, 42140), (430, 36554), (490, 32078), (602, 26110), (746, 21070), (860, 18277), (980, 16039), (1204, 13055), (1492, 10535), (1505, 10444), (1865, 8428), (2107, 7460), (2611, 6020), (3010, 5222), (3730, 4214)]