28070025.000000000

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{10321}}^1$

素因数の和:10414

約数の個数: 32

約数和(自身を含む): 252682560

約数和(自身を除く): 121296230

約数列:

[1, 2, 5, 10, 19, 38, 67, 95, 134, 190, 335, 670, 1273, 2546, 6365, 10321, 12730, 20642, 51605, 103210, 196099, 392198, 691507, 980495, 1383014, 1960990, 3457535, 6915070, 13138633, 26277266, 65693165, 131386330]

約数ペア:

[(1, 131386330), (2, 65693165), (5, 26277266), (10, 13138633), (19, 6915070), (38, 3457535), (67, 1960990), (95, 1383014), (134, 980495), (190, 691507), (335, 392198), (670, 196099), (1273, 103210), (2546, 51605), (6365, 20642), (10321, 12730)]