20958790860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{63247}}^1$

素因数の和:63532

約数の個数: 144

約数和(自身を含む): 72934557696

約数和(自身を除く): 51975766836

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, 263, 315, 420, 526, 630, 789, 1052, 1260, 1315, 1578, 1841, 2367, 2630, 3156, 3682, 3945, 4734, 5260, 5523, 7364, 7890, 9205, 9468, 11046, 11835, 15780, 16569, 18410, 22092, 23670, 27615, 33138, 36820, 47340, 55230, 63247, 66276, 82845, 110460, 126494, 165690, 189741, 252988, 316235, 331380, 379482, 442729, 569223, 632470, 758964, 885458, 948705, 1138446, 1264940, 1328187, 1770916, 1897410, 2213645, 2276892, 2656374, 2846115, 3794820, 3984561, 4427290, 5312748, 5692230, 6640935, 7969122, 8854580, 11384460, 13281870, 15938244, 16633961, 19922805, 26563740, 33267922, 39845610, 49901883, 66535844, 79691220, 83169805, 99803766, 116437727, 149705649, 166339610, 199607532, 232875454, 249509415, 299411298, 332679220, 349313181, 465750908, 499018830, 582188635, 598822596, 698626362, 748528245, 998037660, 1047939543, 1164377270, 1397252724, 1497056490, 1746565905, 2095879086, 2328754540, 2994112980, 3493131810, 4191758172, 5239697715, 6986263620, 10479395430, 20958790860]

約数ペア:

[(1, 20958790860), (2, 10479395430), (3, 6986263620), (4, 5239697715), (5, 4191758172), (6, 3493131810), (7, 2994112980), (9, 2328754540), (10, 2095879086), (12, 1746565905), (14, 1497056490), (15, 1397252724), (18, 1164377270), (20, 1047939543), (21, 998037660), (28, 748528245), (30, 698626362), (35, 598822596), (36, 582188635), (42, 499018830), (45, 465750908), (60, 349313181), (63, 332679220), (70, 299411298), (84, 249509415), (90, 232875454), (105, 199607532), (126, 166339610), (140, 149705649), (180, 116437727), (210, 99803766), (252, 83169805), (263, 79691220), (315, 66535844), (420, 49901883), (526, 39845610), (630, 33267922), (789, 26563740), (1052, 19922805), (1260, 16633961), (1315, 15938244), (1578, 13281870), (1841, 11384460), (2367, 8854580), (2630, 7969122), (3156, 6640935), (3682, 5692230), (3945, 5312748), (4734, 4427290), (5260, 3984561), (5523, 3794820), (7364, 2846115), (7890, 2656374), (9205, 2276892), (9468, 2213645), (11046, 1897410), (11835, 1770916), (15780, 1328187), (16569, 1264940), (18410, 1138446), (22092, 948705), (23670, 885458), (27615, 758964), (33138, 632470), (36820, 569223), (47340, 442729), (55230, 379482), (63247, 331380), (66276, 316235), (82845, 252988), (110460, 189741), (126494, 165690)]