20124540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4861}}^1$

素因数の和:4899

約数の個数: 72

約数和(自身を含む): 63711648

約数和(自身を除く): 43587108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 4861, 9722, 14583, 19444, 24305, 29166, 43749, 48610, 58332, 72915, 87498, 97220, 111803, 145830, 174996, 218745, 223606, 291660, 335409, 437490, 447212, 559015, 670818, 874980, 1006227, 1118030, 1341636, 1677045, 2012454, 2236060, 3354090, 4024908, 5031135, 6708180, 10062270, 20124540]

約数ペア:

[(1, 20124540), (2, 10062270), (3, 6708180), (4, 5031135), (5, 4024908), (6, 3354090), (9, 2236060), (10, 2012454), (12, 1677045), (15, 1341636), (18, 1118030), (20, 1006227), (23, 874980), (30, 670818), (36, 559015), (45, 447212), (46, 437490), (60, 335409), (69, 291660), (90, 223606), (92, 218745), (115, 174996), (138, 145830), (180, 111803), (207, 97220), (230, 87498), (276, 72915), (345, 58332), (414, 48610), (460, 43749), (690, 29166), (828, 24305), (1035, 19444), (1380, 14583), (2070, 9722), (4140, 4861)]