18938240

素因数分解:

$2^7\times 5^1\times {\mathrm{127}}^1\times {\mathrm{233}}^1$

素因数の和:379

約数の個数: 64

約数和(自身を含む): 45826560

約数和(自身を除く): 26888320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 233, 254, 320, 466, 508, 635, 640, 932, 1016, 1165, 1270, 1864, 2032, 2330, 2540, 3728, 4064, 4660, 5080, 7456, 8128, 9320, 10160, 14912, 16256, 18640, 20320, 29591, 29824, 37280, 40640, 59182, 74560, 81280, 118364, 147955, 149120, 236728, 295910, 473456, 591820, 946912, 1183640, 1893824, 2367280, 3787648, 4734560, 9469120, 18938240]

約数ペア:

[(1, 18938240), (2, 9469120), (4, 4734560), (5, 3787648), (8, 2367280), (10, 1893824), (16, 1183640), (20, 946912), (32, 591820), (40, 473456), (64, 295910), (80, 236728), (127, 149120), (128, 147955), (160, 118364), (233, 81280), (254, 74560), (320, 59182), (466, 40640), (508, 37280), (635, 29824), (640, 29591), (932, 20320), (1016, 18640), (1165, 16256), (1270, 14912), (1864, 10160), (2032, 9320), (2330, 8128), (2540, 7456), (3728, 5080), (4064, 4660)]