23688440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 57024000

約数和(自身を除く): 33335560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 71, 76, 95, 142, 152, 190, 284, 355, 380, 439, 568, 710, 760, 878, 1349, 1420, 1756, 2195, 2698, 2840, 3512, 4390, 5396, 6745, 8341, 8780, 10792, 13490, 16682, 17560, 26980, 31169, 33364, 41705, 53960, 62338, 66728, 83410, 124676, 155845, 166820, 249352, 311690, 333640, 592211, 623380, 1184422, 1246760, 2368844, 2961055, 4737688, 5922110, 11844220, 23688440]

約数ペア:

[(1, 23688440), (2, 11844220), (4, 5922110), (5, 4737688), (8, 2961055), (10, 2368844), (19, 1246760), (20, 1184422), (38, 623380), (40, 592211), (71, 333640), (76, 311690), (95, 249352), (142, 166820), (152, 155845), (190, 124676), (284, 83410), (355, 66728), (380, 62338), (439, 53960), (568, 41705), (710, 33364), (760, 31169), (878, 26980), (1349, 17560), (1420, 16682), (1756, 13490), (2195, 10792), (2698, 8780), (2840, 8341), (3512, 6745), (4390, 5396)]