17900888

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 38016000

約数和(自身を除く): 20115112

約数列:

[1, 2, 4, 8, 19, 29, 31, 38, 58, 62, 76, 116, 124, 131, 152, 232, 248, 262, 524, 551, 589, 899, 1048, 1102, 1178, 1798, 2204, 2356, 2489, 3596, 3799, 4061, 4408, 4712, 4978, 7192, 7598, 8122, 9956, 15196, 16244, 17081, 19912, 30392, 32488, 34162, 68324, 72181, 77159, 117769, 136648, 144362, 154318, 235538, 288724, 308636, 471076, 577448, 617272, 942152, 2237611, 4475222, 8950444, 17900888]

約数ペア:

[(1, 17900888), (2, 8950444), (4, 4475222), (8, 2237611), (19, 942152), (29, 617272), (31, 577448), (38, 471076), (58, 308636), (62, 288724), (76, 235538), (116, 154318), (124, 144362), (131, 136648), (152, 117769), (232, 77159), (248, 72181), (262, 68324), (524, 34162), (551, 32488), (589, 30392), (899, 19912), (1048, 17081), (1102, 16244), (1178, 15196), (1798, 9956), (2204, 8122), (2356, 7598), (2489, 7192), (3596, 4978), (3799, 4712), (4061, 4408)]