28656670

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{233}}^1\times {\mathrm{251}}^1$

素因数の和:505

約数の個数: 48

約数和(自身を含む): 60501168

約数和(自身を除く): 31844498

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 233, 245, 251, 466, 490, 502, 1165, 1255, 1631, 1757, 2330, 2510, 3262, 3514, 8155, 8785, 11417, 12299, 16310, 17570, 22834, 24598, 57085, 58483, 61495, 114170, 116966, 122990, 292415, 409381, 584830, 818762, 2046905, 2865667, 4093810, 5731334, 14328335, 28656670]

約数ペア:

[(1, 28656670), (2, 14328335), (5, 5731334), (7, 4093810), (10, 2865667), (14, 2046905), (35, 818762), (49, 584830), (70, 409381), (98, 292415), (233, 122990), (245, 116966), (251, 114170), (466, 61495), (490, 58483), (502, 57085), (1165, 24598), (1255, 22834), (1631, 17570), (1757, 16310), (2330, 12299), (2510, 11417), (3262, 8785), (3514, 8155)]