51391620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{40787}}^1$

素因数の和:40809

約数の個数: 72

約数和(自身を含む): 178161984

約数和(自身を除く): 126770364

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 40787, 81574, 122361, 163148, 203935, 244722, 285509, 367083, 407870, 489444, 571018, 611805, 734166, 815740, 856527, 1142036, 1223610, 1427545, 1468332, 1713054, 1835415, 2447220, 2569581, 2855090, 3426108, 3670830, 4282635, 5139162, 5710180, 7341660, 8565270, 10278324, 12847905, 17130540, 25695810, 51391620]

約数ペア:

[(1, 51391620), (2, 25695810), (3, 17130540), (4, 12847905), (5, 10278324), (6, 8565270), (7, 7341660), (9, 5710180), (10, 5139162), (12, 4282635), (14, 3670830), (15, 3426108), (18, 2855090), (20, 2569581), (21, 2447220), (28, 1835415), (30, 1713054), (35, 1468332), (36, 1427545), (42, 1223610), (45, 1142036), (60, 856527), (63, 815740), (70, 734166), (84, 611805), (90, 571018), (105, 489444), (126, 407870), (140, 367083), (180, 285509), (210, 244722), (252, 203935), (315, 163148), (420, 122361), (630, 81574), (1260, 40787)]