19229900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:411

約数の個数: 72

約数和(自身を含む): 45570000

約数和(自身を除く): 26340100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 29, 38, 50, 58, 76, 95, 100, 116, 145, 190, 290, 349, 380, 475, 551, 580, 698, 725, 950, 1102, 1396, 1450, 1745, 1900, 2204, 2755, 2900, 3490, 5510, 6631, 6980, 8725, 10121, 11020, 13262, 13775, 17450, 20242, 26524, 27550, 33155, 34900, 40484, 50605, 55100, 66310, 101210, 132620, 165775, 192299, 202420, 253025, 331550, 384598, 506050, 663100, 769196, 961495, 1012100, 1922990, 3845980, 4807475, 9614950, 19229900]

約数ペア:

[(1, 19229900), (2, 9614950), (4, 4807475), (5, 3845980), (10, 1922990), (19, 1012100), (20, 961495), (25, 769196), (29, 663100), (38, 506050), (50, 384598), (58, 331550), (76, 253025), (95, 202420), (100, 192299), (116, 165775), (145, 132620), (190, 101210), (290, 66310), (349, 55100), (380, 50605), (475, 40484), (551, 34900), (580, 33155), (698, 27550), (725, 26524), (950, 20242), (1102, 17450), (1396, 13775), (1450, 13262), (1745, 11020), (1900, 10121), (2204, 8725), (2755, 6980), (2900, 6631), (3490, 5510)]