19212420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{887}}^1$

素因数の和:937

約数の個数: 72

約数和(自身を含む): 56839104

約数和(自身を除く): 37626684

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 361, 380, 570, 722, 887, 1083, 1140, 1444, 1774, 1805, 2166, 2661, 3548, 3610, 4332, 4435, 5322, 5415, 7220, 8870, 10644, 10830, 13305, 16853, 17740, 21660, 26610, 33706, 50559, 53220, 67412, 84265, 101118, 168530, 202236, 252795, 320207, 337060, 505590, 640414, 960621, 1011180, 1280828, 1601035, 1921242, 3202070, 3842484, 4803105, 6404140, 9606210, 19212420]

約数ペア:

[(1, 19212420), (2, 9606210), (3, 6404140), (4, 4803105), (5, 3842484), (6, 3202070), (10, 1921242), (12, 1601035), (15, 1280828), (19, 1011180), (20, 960621), (30, 640414), (38, 505590), (57, 337060), (60, 320207), (76, 252795), (95, 202236), (114, 168530), (190, 101118), (228, 84265), (285, 67412), (361, 53220), (380, 50559), (570, 33706), (722, 26610), (887, 21660), (1083, 17740), (1140, 16853), (1444, 13305), (1774, 10830), (1805, 10644), (2166, 8870), (2661, 7220), (3548, 5415), (3610, 5322), (4332, 4435)]