21460680

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1$

素因数の和:692

約数の個数: 128

約数和(自身を含む): 73958400

約数和(自身を除く): 52497720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 31, 36, 40, 45, 54, 60, 62, 72, 90, 93, 108, 120, 124, 135, 155, 180, 186, 216, 248, 270, 279, 310, 360, 372, 465, 540, 558, 620, 641, 744, 837, 930, 1080, 1116, 1240, 1282, 1395, 1674, 1860, 1923, 2232, 2564, 2790, 3205, 3348, 3720, 3846, 4185, 5128, 5580, 5769, 6410, 6696, 7692, 8370, 9615, 11160, 11538, 12820, 15384, 16740, 17307, 19230, 19871, 23076, 25640, 28845, 33480, 34614, 38460, 39742, 46152, 57690, 59613, 69228, 76920, 79484, 86535, 99355, 115380, 119226, 138456, 158968, 173070, 178839, 198710, 230760, 238452, 298065, 346140, 357678, 397420, 476904, 536517, 596130, 692280, 715356, 794840, 894195, 1073034, 1192260, 1430712, 1788390, 2146068, 2384520, 2682585, 3576780, 4292136, 5365170, 7153560, 10730340, 21460680]

約数ペア:

[(1, 21460680), (2, 10730340), (3, 7153560), (4, 5365170), (5, 4292136), (6, 3576780), (8, 2682585), (9, 2384520), (10, 2146068), (12, 1788390), (15, 1430712), (18, 1192260), (20, 1073034), (24, 894195), (27, 794840), (30, 715356), (31, 692280), (36, 596130), (40, 536517), (45, 476904), (54, 397420), (60, 357678), (62, 346140), (72, 298065), (90, 238452), (93, 230760), (108, 198710), (120, 178839), (124, 173070), (135, 158968), (155, 138456), (180, 119226), (186, 115380), (216, 99355), (248, 86535), (270, 79484), (279, 76920), (310, 69228), (360, 59613), (372, 57690), (465, 46152), (540, 39742), (558, 38460), (620, 34614), (641, 33480), (744, 28845), (837, 25640), (930, 23076), (1080, 19871), (1116, 19230), (1240, 17307), (1282, 16740), (1395, 15384), (1674, 12820), (1860, 11538), (1923, 11160), (2232, 9615), (2564, 8370), (2790, 7692), (3205, 6696), (3348, 6410), (3720, 5769), (3846, 5580), (4185, 5128)]