20148244880

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1\times {\mathrm{6577}}^1$

素因数の和:6996

約数の個数: 80

約数和(自身を含む): 47349759600

約数和(自身を除く): 27201514720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 257, 298, 514, 596, 745, 1028, 1192, 1285, 1490, 2056, 2384, 2570, 2980, 4112, 5140, 5960, 6577, 10280, 11920, 13154, 20560, 26308, 32885, 38293, 52616, 65770, 76586, 105232, 131540, 153172, 191465, 263080, 306344, 382930, 526160, 612688, 765860, 979973, 1531720, 1690289, 1959946, 3063440, 3380578, 3919892, 4899865, 6761156, 7839784, 8451445, 9799730, 13522312, 15679568, 16902890, 19599460, 27044624, 33805780, 39198920, 67611560, 78397840, 135223120, 251853061, 503706122, 1007412244, 1259265305, 2014824488, 2518530610, 4029648976, 5037061220, 10074122440, 20148244880]

約数ペア:

[(1, 20148244880), (2, 10074122440), (4, 5037061220), (5, 4029648976), (8, 2518530610), (10, 2014824488), (16, 1259265305), (20, 1007412244), (40, 503706122), (80, 251853061), (149, 135223120), (257, 78397840), (298, 67611560), (514, 39198920), (596, 33805780), (745, 27044624), (1028, 19599460), (1192, 16902890), (1285, 15679568), (1490, 13522312), (2056, 9799730), (2384, 8451445), (2570, 7839784), (2980, 6761156), (4112, 4899865), (5140, 3919892), (5960, 3380578), (6577, 3063440), (10280, 1959946), (11920, 1690289), (13154, 1531720), (20560, 979973), (26308, 765860), (32885, 612688), (38293, 526160), (52616, 382930), (65770, 306344), (76586, 263080), (105232, 191465), (131540, 153172)]