28690965

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 52056576

約数和(自身を除く): 23365611

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 131, 155, 157, 279, 393, 465, 471, 655, 785, 1179, 1395, 1413, 1965, 2355, 4061, 4867, 5895, 7065, 12183, 14601, 20305, 20567, 24335, 36549, 43803, 60915, 61701, 73005, 102835, 182745, 185103, 219015, 308505, 637577, 925515, 1912731, 3187885, 5738193, 9563655, 28690965]

約数ペア:

[(1, 28690965), (3, 9563655), (5, 5738193), (9, 3187885), (15, 1912731), (31, 925515), (45, 637577), (93, 308505), (131, 219015), (155, 185103), (157, 182745), (279, 102835), (393, 73005), (465, 61701), (471, 60915), (655, 43803), (785, 36549), (1179, 24335), (1395, 20567), (1413, 20305), (1965, 14601), (2355, 12183), (4061, 7065), (4867, 5895)]