20370375

素因数分解:

$3^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{953}}^1$

素因数の和:993

約数の個数: 48

約数和(自身を含む): 38694240

約数和(自身を除く): 18323865

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 125, 171, 225, 285, 375, 475, 855, 953, 1125, 1425, 2375, 2859, 4275, 4765, 7125, 8577, 14295, 18107, 21375, 23825, 42885, 54321, 71475, 90535, 119125, 162963, 214425, 271605, 357375, 452675, 814815, 1072125, 1358025, 2263375, 4074075, 6790125, 20370375]

約数ペア:

[(1, 20370375), (3, 6790125), (5, 4074075), (9, 2263375), (15, 1358025), (19, 1072125), (25, 814815), (45, 452675), (57, 357375), (75, 271605), (95, 214425), (125, 162963), (171, 119125), (225, 90535), (285, 71475), (375, 54321), (475, 42885), (855, 23825), (953, 21375), (1125, 18107), (1425, 14295), (2375, 8577), (2859, 7125), (4275, 4765)]