20365560

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:302

約数の個数: 128

約数和(自身を含む): 68904000

約数和(自身を除く): 48538440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 109, 120, 135, 173, 180, 216, 218, 270, 327, 346, 360, 436, 519, 540, 545, 654, 692, 865, 872, 981, 1038, 1080, 1090, 1308, 1384, 1557, 1635, 1730, 1962, 2076, 2180, 2595, 2616, 2943, 3114, 3270, 3460, 3924, 4152, 4360, 4671, 4905, 5190, 5886, 6228, 6540, 6920, 7785, 7848, 9342, 9810, 10380, 11772, 12456, 13080, 14715, 15570, 18684, 18857, 19620, 20760, 23355, 23544, 29430, 31140, 37368, 37714, 39240, 46710, 56571, 58860, 62280, 75428, 93420, 94285, 113142, 117720, 150856, 169713, 186840, 188570, 226284, 282855, 339426, 377140, 452568, 509139, 565710, 678852, 754280, 848565, 1018278, 1131420, 1357704, 1697130, 2036556, 2262840, 2545695, 3394260, 4073112, 5091390, 6788520, 10182780, 20365560]

約数ペア:

[(1, 20365560), (2, 10182780), (3, 6788520), (4, 5091390), (5, 4073112), (6, 3394260), (8, 2545695), (9, 2262840), (10, 2036556), (12, 1697130), (15, 1357704), (18, 1131420), (20, 1018278), (24, 848565), (27, 754280), (30, 678852), (36, 565710), (40, 509139), (45, 452568), (54, 377140), (60, 339426), (72, 282855), (90, 226284), (108, 188570), (109, 186840), (120, 169713), (135, 150856), (173, 117720), (180, 113142), (216, 94285), (218, 93420), (270, 75428), (327, 62280), (346, 58860), (360, 56571), (436, 46710), (519, 39240), (540, 37714), (545, 37368), (654, 31140), (692, 29430), (865, 23544), (872, 23355), (981, 20760), (1038, 19620), (1080, 18857), (1090, 18684), (1308, 15570), (1384, 14715), (1557, 13080), (1635, 12456), (1730, 11772), (1962, 10380), (2076, 9810), (2180, 9342), (2595, 7848), (2616, 7785), (2943, 6920), (3114, 6540), (3270, 6228), (3460, 5886), (3924, 5190), (4152, 4905), (4360, 4671)]