20154120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23993}}^1$

素因数の和:24014

約数の個数: 64

約数和(自身を含む): 69102720

約数和(自身を除く): 48948600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 23993, 47986, 71979, 95972, 119965, 143958, 167951, 191944, 239930, 287916, 335902, 359895, 479860, 503853, 575832, 671804, 719790, 839755, 959720, 1007706, 1343608, 1439580, 1679510, 2015412, 2519265, 2879160, 3359020, 4030824, 5038530, 6718040, 10077060, 20154120]

約数ペア:

[(1, 20154120), (2, 10077060), (3, 6718040), (4, 5038530), (5, 4030824), (6, 3359020), (7, 2879160), (8, 2519265), (10, 2015412), (12, 1679510), (14, 1439580), (15, 1343608), (20, 1007706), (21, 959720), (24, 839755), (28, 719790), (30, 671804), (35, 575832), (40, 503853), (42, 479860), (56, 359895), (60, 335902), (70, 287916), (84, 239930), (105, 191944), (120, 167951), (140, 143958), (168, 119965), (210, 95972), (280, 71979), (420, 47986), (840, 23993)]