20207840

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2383}}^1$

素因数の和:2451

約数の個数: 48

約数和(自身を含む): 48662208

約数和(自身を除く): 28454368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 160, 212, 265, 424, 530, 848, 1060, 1696, 2120, 2383, 4240, 4766, 8480, 9532, 11915, 19064, 23830, 38128, 47660, 76256, 95320, 126299, 190640, 252598, 381280, 505196, 631495, 1010392, 1262990, 2020784, 2525980, 4041568, 5051960, 10103920, 20207840]

約数ペア:

[(1, 20207840), (2, 10103920), (4, 5051960), (5, 4041568), (8, 2525980), (10, 2020784), (16, 1262990), (20, 1010392), (32, 631495), (40, 505196), (53, 381280), (80, 252598), (106, 190640), (160, 126299), (212, 95320), (265, 76256), (424, 47660), (530, 38128), (848, 23830), (1060, 19064), (1696, 11915), (2120, 9532), (2383, 8480), (4240, 4766)]