15820904

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:210

約数の個数: 64

約数和(自身を含む): 34309440

約数和(自身を除く): 18488536

約数列:

[1, 2, 4, 8, 11, 22, 37, 43, 44, 74, 86, 88, 113, 148, 172, 226, 296, 344, 407, 452, 473, 814, 904, 946, 1243, 1591, 1628, 1892, 2486, 3182, 3256, 3784, 4181, 4859, 4972, 6364, 8362, 9718, 9944, 12728, 16724, 17501, 19436, 33448, 35002, 38872, 45991, 53449, 70004, 91982, 106898, 140008, 179783, 183964, 213796, 359566, 367928, 427592, 719132, 1438264, 1977613, 3955226, 7910452, 15820904]

約数ペア:

[(1, 15820904), (2, 7910452), (4, 3955226), (8, 1977613), (11, 1438264), (22, 719132), (37, 427592), (43, 367928), (44, 359566), (74, 213796), (86, 183964), (88, 179783), (113, 140008), (148, 106898), (172, 91982), (226, 70004), (296, 53449), (344, 45991), (407, 38872), (452, 35002), (473, 33448), (814, 19436), (904, 17501), (946, 16724), (1243, 12728), (1591, 9944), (1628, 9718), (1892, 8362), (2486, 6364), (3182, 4972), (3256, 4859), (3784, 4181)]