180721980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:344

約数の個数: 144

約数和(自身を含む): 566092800

約数和(自身を除く): 385370820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 79, 90, 142, 158, 179, 180, 213, 237, 284, 316, 355, 358, 395, 426, 474, 537, 639, 710, 711, 716, 790, 852, 895, 948, 1065, 1074, 1185, 1278, 1420, 1422, 1580, 1611, 1790, 2130, 2148, 2370, 2556, 2685, 2844, 3195, 3222, 3555, 3580, 4260, 4740, 5370, 5609, 6390, 6444, 7110, 8055, 10740, 11218, 12709, 12780, 14141, 14220, 16110, 16827, 22436, 25418, 28045, 28282, 32220, 33654, 38127, 42423, 50481, 50836, 56090, 56564, 63545, 67308, 70705, 76254, 84135, 84846, 100962, 112180, 114381, 127090, 127269, 141410, 152508, 168270, 169692, 190635, 201924, 212115, 228762, 252405, 254180, 254538, 282820, 336540, 381270, 424230, 457524, 504810, 509076, 571905, 636345, 762540, 848460, 1004011, 1009620, 1143810, 1272690, 2008022, 2287620, 2545380, 3012033, 4016044, 5020055, 6024066, 9036099, 10040110, 12048132, 15060165, 18072198, 20080220, 30120330, 36144396, 45180495, 60240660, 90360990, 180721980]

約数ペア:

[(1, 180721980), (2, 90360990), (3, 60240660), (4, 45180495), (5, 36144396), (6, 30120330), (9, 20080220), (10, 18072198), (12, 15060165), (15, 12048132), (18, 10040110), (20, 9036099), (30, 6024066), (36, 5020055), (45, 4016044), (60, 3012033), (71, 2545380), (79, 2287620), (90, 2008022), (142, 1272690), (158, 1143810), (179, 1009620), (180, 1004011), (213, 848460), (237, 762540), (284, 636345), (316, 571905), (355, 509076), (358, 504810), (395, 457524), (426, 424230), (474, 381270), (537, 336540), (639, 282820), (710, 254538), (711, 254180), (716, 252405), (790, 228762), (852, 212115), (895, 201924), (948, 190635), (1065, 169692), (1074, 168270), (1185, 152508), (1278, 141410), (1420, 127269), (1422, 127090), (1580, 114381), (1611, 112180), (1790, 100962), (2130, 84846), (2148, 84135), (2370, 76254), (2556, 70705), (2685, 67308), (2844, 63545), (3195, 56564), (3222, 56090), (3555, 50836), (3580, 50481), (4260, 42423), (4740, 38127), (5370, 33654), (5609, 32220), (6390, 28282), (6444, 28045), (7110, 25418), (8055, 22436), (10740, 16827), (11218, 16110), (12709, 14220), (12780, 14141)]