21740760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{461}}^1$

素因数の和:609

約数の個数: 96

約数和(自身を含む): 71351280

約数和(自身を除く): 49610520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 131, 180, 262, 360, 393, 461, 524, 655, 786, 922, 1048, 1179, 1310, 1383, 1572, 1844, 1965, 2305, 2358, 2620, 2766, 3144, 3688, 3930, 4149, 4610, 4716, 5240, 5532, 5895, 6915, 7860, 8298, 9220, 9432, 11064, 11790, 13830, 15720, 16596, 18440, 20745, 23580, 27660, 33192, 41490, 47160, 55320, 60391, 82980, 120782, 165960, 181173, 241564, 301955, 362346, 483128, 543519, 603910, 724692, 905865, 1087038, 1207820, 1449384, 1811730, 2174076, 2415640, 2717595, 3623460, 4348152, 5435190, 7246920, 10870380, 21740760]

約数ペア:

[(1, 21740760), (2, 10870380), (3, 7246920), (4, 5435190), (5, 4348152), (6, 3623460), (8, 2717595), (9, 2415640), (10, 2174076), (12, 1811730), (15, 1449384), (18, 1207820), (20, 1087038), (24, 905865), (30, 724692), (36, 603910), (40, 543519), (45, 483128), (60, 362346), (72, 301955), (90, 241564), (120, 181173), (131, 165960), (180, 120782), (262, 82980), (360, 60391), (393, 55320), (461, 47160), (524, 41490), (655, 33192), (786, 27660), (922, 23580), (1048, 20745), (1179, 18440), (1310, 16596), (1383, 15720), (1572, 13830), (1844, 11790), (1965, 11064), (2305, 9432), (2358, 9220), (2620, 8298), (2766, 7860), (3144, 6915), (3688, 5895), (3930, 5532), (4149, 5240), (4610, 4716)]