154470440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{499}}^1$

素因数の和:690

約数の個数: 64

約数和(自身を含む): 356400000

約数和(自身を除く): 201929560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 109, 142, 218, 284, 355, 436, 499, 545, 568, 710, 872, 998, 1090, 1420, 1996, 2180, 2495, 2840, 3992, 4360, 4990, 7739, 9980, 15478, 19960, 30956, 35429, 38695, 54391, 61912, 70858, 77390, 108782, 141716, 154780, 177145, 217564, 271955, 283432, 309560, 354290, 435128, 543910, 708580, 1087820, 1417160, 2175640, 3861761, 7723522, 15447044, 19308805, 30894088, 38617610, 77235220, 154470440]

約数ペア:

[(1, 154470440), (2, 77235220), (4, 38617610), (5, 30894088), (8, 19308805), (10, 15447044), (20, 7723522), (40, 3861761), (71, 2175640), (109, 1417160), (142, 1087820), (218, 708580), (284, 543910), (355, 435128), (436, 354290), (499, 309560), (545, 283432), (568, 271955), (710, 217564), (872, 177145), (998, 154780), (1090, 141716), (1420, 108782), (1996, 77390), (2180, 70858), (2495, 61912), (2840, 54391), (3992, 38695), (4360, 35429), (4990, 30956), (7739, 19960), (9980, 15478)]