20127990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{941}}^1$

素因数の和:1005

約数の個数: 64

約数和(自身を含む): 52088832

約数和(自身を除く): 31960842

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 31, 46, 62, 69, 93, 115, 138, 155, 186, 230, 310, 345, 465, 690, 713, 930, 941, 1426, 1882, 2139, 2823, 3565, 4278, 4705, 5646, 7130, 9410, 10695, 14115, 21390, 21643, 28230, 29171, 43286, 58342, 64929, 87513, 108215, 129858, 145855, 175026, 216430, 291710, 324645, 437565, 649290, 670933, 875130, 1341866, 2012799, 3354665, 4025598, 6709330, 10063995, 20127990]

約数ペア:

[(1, 20127990), (2, 10063995), (3, 6709330), (5, 4025598), (6, 3354665), (10, 2012799), (15, 1341866), (23, 875130), (30, 670933), (31, 649290), (46, 437565), (62, 324645), (69, 291710), (93, 216430), (115, 175026), (138, 145855), (155, 129858), (186, 108215), (230, 87513), (310, 64929), (345, 58342), (465, 43286), (690, 29171), (713, 28230), (930, 21643), (941, 21390), (1426, 14115), (1882, 10695), (2139, 9410), (2823, 7130), (3565, 5646), (4278, 4705)]