219258340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{229}}^1\times {\mathrm{977}}^1$

素因数の和:1229

約数の個数: 72

約数和(自身を含む): 538506360

約数和(自身を除く): 319248020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 229, 245, 458, 490, 916, 977, 980, 1145, 1603, 1954, 2290, 3206, 3908, 4580, 4885, 6412, 6839, 8015, 9770, 11221, 13678, 16030, 19540, 22442, 27356, 32060, 34195, 44884, 47873, 56105, 68390, 95746, 112210, 136780, 191492, 223733, 224420, 239365, 447466, 478730, 894932, 957460, 1118665, 1566131, 2237330, 3132262, 4474660, 6264524, 7830655, 10962917, 15661310, 21925834, 31322620, 43851668, 54814585, 109629170, 219258340]

約数ペア:

[(1, 219258340), (2, 109629170), (4, 54814585), (5, 43851668), (7, 31322620), (10, 21925834), (14, 15661310), (20, 10962917), (28, 7830655), (35, 6264524), (49, 4474660), (70, 3132262), (98, 2237330), (140, 1566131), (196, 1118665), (229, 957460), (245, 894932), (458, 478730), (490, 447466), (916, 239365), (977, 224420), (980, 223733), (1145, 191492), (1603, 136780), (1954, 112210), (2290, 95746), (3206, 68390), (3908, 56105), (4580, 47873), (4885, 44884), (6412, 34195), (6839, 32060), (8015, 27356), (9770, 22442), (11221, 19540), (13678, 16030)]