198820520

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{1697}}^1$

素因数の和:1838

約数の個数: 64

約数和(自身を含む): 467629200

約数和(自身を除く): 268808680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 101, 116, 145, 202, 232, 290, 404, 505, 580, 808, 1010, 1160, 1697, 2020, 2929, 3394, 4040, 5858, 6788, 8485, 11716, 13576, 14645, 16970, 23432, 29290, 33940, 49213, 58580, 67880, 98426, 117160, 171397, 196852, 246065, 342794, 393704, 492130, 685588, 856985, 984260, 1371176, 1713970, 1968520, 3427940, 4970513, 6855880, 9941026, 19882052, 24852565, 39764104, 49705130, 99410260, 198820520]

約数ペア:

[(1, 198820520), (2, 99410260), (4, 49705130), (5, 39764104), (8, 24852565), (10, 19882052), (20, 9941026), (29, 6855880), (40, 4970513), (58, 3427940), (101, 1968520), (116, 1713970), (145, 1371176), (202, 984260), (232, 856985), (290, 685588), (404, 492130), (505, 393704), (580, 342794), (808, 246065), (1010, 196852), (1160, 171397), (1697, 117160), (2020, 98426), (2929, 67880), (3394, 58580), (4040, 49213), (5858, 33940), (6788, 29290), (8485, 23432), (11716, 16970), (13576, 14645)]