20709360

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{587}}^1$

素因数の和:620

約数の個数: 180

約数和(自身を含む): 81041688

約数和(自身を除く): 60332328

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 587, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1174, 1176, 1260, 1470, 1680, 1761, 1764, 1960, 2205, 2348, 2352, 2520, 2935, 2940, 3522, 3528, 3920, 4109, 4410, 4696, 5040, 5283, 5870, 5880, 7044, 7056, 8218, 8805, 8820, 9392, 10566, 11740, 11760, 12327, 14088, 16436, 17610, 17640, 20545, 21132, 23480, 24654, 26415, 28176, 28763, 32872, 35220, 35280, 36981, 41090, 42264, 46960, 49308, 52830, 57526, 61635, 65744, 70440, 73962, 82180, 84528, 86289, 98616, 105660, 115052, 123270, 140880, 143815, 147924, 164360, 172578, 184905, 197232, 211320, 230104, 246540, 258867, 287630, 295848, 328720, 345156, 369810, 422640, 431445, 460208, 493080, 517734, 575260, 591696, 690312, 739620, 862890, 986160, 1035468, 1150520, 1294335, 1380624, 1479240, 1725780, 2070936, 2301040, 2588670, 2958480, 3451560, 4141872, 5177340, 6903120, 10354680, 20709360]

約数ペア:

[(1, 20709360), (2, 10354680), (3, 6903120), (4, 5177340), (5, 4141872), (6, 3451560), (7, 2958480), (8, 2588670), (9, 2301040), (10, 2070936), (12, 1725780), (14, 1479240), (15, 1380624), (16, 1294335), (18, 1150520), (20, 1035468), (21, 986160), (24, 862890), (28, 739620), (30, 690312), (35, 591696), (36, 575260), (40, 517734), (42, 493080), (45, 460208), (48, 431445), (49, 422640), (56, 369810), (60, 345156), (63, 328720), (70, 295848), (72, 287630), (80, 258867), (84, 246540), (90, 230104), (98, 211320), (105, 197232), (112, 184905), (120, 172578), (126, 164360), (140, 147924), (144, 143815), (147, 140880), (168, 123270), (180, 115052), (196, 105660), (210, 98616), (240, 86289), (245, 84528), (252, 82180), (280, 73962), (294, 70440), (315, 65744), (336, 61635), (360, 57526), (392, 52830), (420, 49308), (441, 46960), (490, 42264), (504, 41090), (560, 36981), (587, 35280), (588, 35220), (630, 32872), (720, 28763), (735, 28176), (784, 26415), (840, 24654), (882, 23480), (980, 21132), (1008, 20545), (1174, 17640), (1176, 17610), (1260, 16436), (1470, 14088), (1680, 12327), (1761, 11760), (1764, 11740), (1960, 10566), (2205, 9392), (2348, 8820), (2352, 8805), (2520, 8218), (2935, 7056), (2940, 7044), (3522, 5880), (3528, 5870), (3920, 5283), (4109, 5040), (4410, 4696)]