20452064

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1$

素因数の和:483

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 22004896

約数列:

[1, 2, 4, 8, 16, 31, 32, 53, 62, 106, 124, 212, 248, 389, 424, 496, 778, 848, 992, 1556, 1643, 1696, 3112, 3286, 6224, 6572, 12059, 12448, 13144, 20617, 24118, 26288, 41234, 48236, 52576, 82468, 96472, 164936, 192944, 329872, 385888, 639127, 659744, 1278254, 2556508, 5113016, 10226032, 20452064]

約数ペア:

[(1, 20452064), (2, 10226032), (4, 5113016), (8, 2556508), (16, 1278254), (31, 659744), (32, 639127), (53, 385888), (62, 329872), (106, 192944), (124, 164936), (212, 96472), (248, 82468), (389, 52576), (424, 48236), (496, 41234), (778, 26288), (848, 24118), (992, 20617), (1556, 13144), (1643, 12448), (1696, 12059), (3112, 6572), (3286, 6224)]