30831918

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:401

約数の個数: 64

約数和(自身を含む): 70447104

約数和(自身を除く): 39615186

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 41, 62, 78, 82, 93, 123, 186, 246, 311, 403, 533, 622, 806, 933, 1066, 1209, 1271, 1599, 1866, 2418, 2542, 3198, 3813, 4043, 7626, 8086, 9641, 12129, 12751, 16523, 19282, 24258, 25502, 28923, 33046, 38253, 49569, 57846, 76506, 99138, 125333, 165763, 250666, 331526, 375999, 395281, 497289, 751998, 790562, 994578, 1185843, 2371686, 5138653, 10277306, 15415959, 30831918]

約数ペア:

[(1, 30831918), (2, 15415959), (3, 10277306), (6, 5138653), (13, 2371686), (26, 1185843), (31, 994578), (39, 790562), (41, 751998), (62, 497289), (78, 395281), (82, 375999), (93, 331526), (123, 250666), (186, 165763), (246, 125333), (311, 99138), (403, 76506), (533, 57846), (622, 49569), (806, 38253), (933, 33046), (1066, 28923), (1209, 25502), (1271, 24258), (1599, 19282), (1866, 16523), (2418, 12751), (2542, 12129), (3198, 9641), (3813, 8086), (4043, 7626)]