20198002900

素因数分解:

$2^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{383}}^1\times {\mathrm{3359}}^1$

素因数の和:3913

約数の個数: 72

約数和(自身を含む): 44237168640

約数和(自身を除く): 24039165740

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 157, 314, 383, 628, 766, 785, 1532, 1570, 1915, 3140, 3359, 3830, 3925, 6718, 7660, 7850, 9575, 13436, 15700, 16795, 19150, 33590, 38300, 60131, 67180, 83975, 120262, 167950, 240524, 300655, 335900, 527363, 601310, 1054726, 1202620, 1286497, 1503275, 2109452, 2572994, 2636815, 3006550, 5145988, 5273630, 6013100, 6432485, 10547260, 12864970, 13184075, 25729940, 26368150, 32162425, 52736300, 64324850, 128649700, 201980029, 403960058, 807920116, 1009900145, 2019800290, 4039600580, 5049500725, 10099001450, 20198002900]

約数ペア:

[(1, 20198002900), (2, 10099001450), (4, 5049500725), (5, 4039600580), (10, 2019800290), (20, 1009900145), (25, 807920116), (50, 403960058), (100, 201980029), (157, 128649700), (314, 64324850), (383, 52736300), (628, 32162425), (766, 26368150), (785, 25729940), (1532, 13184075), (1570, 12864970), (1915, 10547260), (3140, 6432485), (3359, 6013100), (3830, 5273630), (3925, 5145988), (6718, 3006550), (7660, 2636815), (7850, 2572994), (9575, 2109452), (13436, 1503275), (15700, 1286497), (16795, 1202620), (19150, 1054726), (33590, 601310), (38300, 527363), (60131, 335900), (67180, 300655), (83975, 240524), (120262, 167950)]