19639400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:219

約数の個数: 96

約数和(自身を含む): 50889600

約数和(自身を除く): 31250200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 79, 88, 100, 110, 113, 158, 200, 220, 226, 275, 316, 395, 440, 452, 550, 565, 632, 790, 869, 904, 1100, 1130, 1243, 1580, 1738, 1975, 2200, 2260, 2486, 2825, 3160, 3476, 3950, 4345, 4520, 4972, 5650, 6215, 6952, 7900, 8690, 8927, 9944, 11300, 12430, 15800, 17380, 17854, 21725, 22600, 24860, 31075, 34760, 35708, 43450, 44635, 49720, 62150, 71416, 86900, 89270, 98197, 124300, 173800, 178540, 196394, 223175, 248600, 357080, 392788, 446350, 490985, 785576, 892700, 981970, 1785400, 1963940, 2454925, 3927880, 4909850, 9819700, 19639400]

約数ペア:

[(1, 19639400), (2, 9819700), (4, 4909850), (5, 3927880), (8, 2454925), (10, 1963940), (11, 1785400), (20, 981970), (22, 892700), (25, 785576), (40, 490985), (44, 446350), (50, 392788), (55, 357080), (79, 248600), (88, 223175), (100, 196394), (110, 178540), (113, 173800), (158, 124300), (200, 98197), (220, 89270), (226, 86900), (275, 71416), (316, 62150), (395, 49720), (440, 44635), (452, 43450), (550, 35708), (565, 34760), (632, 31075), (790, 24860), (869, 22600), (904, 21725), (1100, 17854), (1130, 17380), (1243, 15800), (1580, 12430), (1738, 11300), (1975, 9944), (2200, 8927), (2260, 8690), (2486, 7900), (2825, 6952), (3160, 6215), (3476, 5650), (3950, 4972), (4345, 4520)]