28852020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1801}}^1$

素因数の和:1905

約数の個数: 72

約数和(自身を含む): 88550280

約数和(自身を除く): 59698260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1335, 1602, 1780, 1801, 2670, 3204, 3602, 4005, 5340, 5403, 7204, 8010, 9005, 10806, 16020, 16209, 18010, 21612, 27015, 32418, 36020, 54030, 64836, 81045, 108060, 160289, 162090, 320578, 324180, 480867, 641156, 801445, 961734, 1442601, 1602890, 1923468, 2404335, 2885202, 3205780, 4808670, 5770404, 7213005, 9617340, 14426010, 28852020]

約数ペア:

[(1, 28852020), (2, 14426010), (3, 9617340), (4, 7213005), (5, 5770404), (6, 4808670), (9, 3205780), (10, 2885202), (12, 2404335), (15, 1923468), (18, 1602890), (20, 1442601), (30, 961734), (36, 801445), (45, 641156), (60, 480867), (89, 324180), (90, 320578), (178, 162090), (180, 160289), (267, 108060), (356, 81045), (445, 64836), (534, 54030), (801, 36020), (890, 32418), (1068, 27015), (1335, 21612), (1602, 18010), (1780, 16209), (1801, 16020), (2670, 10806), (3204, 9005), (3602, 8010), (4005, 7204), (5340, 5403)]