30787920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{701}}^1$

素因数の和:781

約数の個数: 120

約数和(自身を含む): 105241032

約数和(自身を除く): 74453112

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 61, 72, 80, 90, 120, 122, 144, 180, 183, 240, 244, 305, 360, 366, 488, 549, 610, 701, 720, 732, 915, 976, 1098, 1220, 1402, 1464, 1830, 2103, 2196, 2440, 2745, 2804, 2928, 3505, 3660, 4206, 4392, 4880, 5490, 5608, 6309, 7010, 7320, 8412, 8784, 10515, 10980, 11216, 12618, 14020, 14640, 16824, 21030, 21960, 25236, 28040, 31545, 33648, 42060, 42761, 43920, 50472, 56080, 63090, 84120, 85522, 100944, 126180, 128283, 168240, 171044, 213805, 252360, 256566, 342088, 384849, 427610, 504720, 513132, 641415, 684176, 769698, 855220, 1026264, 1282830, 1539396, 1710440, 1924245, 2052528, 2565660, 3078792, 3420880, 3848490, 5131320, 6157584, 7696980, 10262640, 15393960, 30787920]

約数ペア:

[(1, 30787920), (2, 15393960), (3, 10262640), (4, 7696980), (5, 6157584), (6, 5131320), (8, 3848490), (9, 3420880), (10, 3078792), (12, 2565660), (15, 2052528), (16, 1924245), (18, 1710440), (20, 1539396), (24, 1282830), (30, 1026264), (36, 855220), (40, 769698), (45, 684176), (48, 641415), (60, 513132), (61, 504720), (72, 427610), (80, 384849), (90, 342088), (120, 256566), (122, 252360), (144, 213805), (180, 171044), (183, 168240), (240, 128283), (244, 126180), (305, 100944), (360, 85522), (366, 84120), (488, 63090), (549, 56080), (610, 50472), (701, 43920), (720, 42761), (732, 42060), (915, 33648), (976, 31545), (1098, 28040), (1220, 25236), (1402, 21960), (1464, 21030), (1830, 16824), (2103, 14640), (2196, 14020), (2440, 12618), (2745, 11216), (2804, 10980), (2928, 10515), (3505, 8784), (3660, 8412), (4206, 7320), (4392, 7010), (4880, 6309), (5490, 5608)]