870390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1$

素因数の和:541

約数の個数: 48

約数和(自身を含む): 2386800

約数和(自身を除く): 1516410

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 57, 90, 95, 114, 171, 190, 285, 342, 509, 570, 855, 1018, 1527, 1710, 2545, 3054, 4581, 5090, 7635, 9162, 9671, 15270, 19342, 22905, 29013, 45810, 48355, 58026, 87039, 96710, 145065, 174078, 290130, 435195, 870390]

約数ペア:

[(1, 870390), (2, 435195), (3, 290130), (5, 174078), (6, 145065), (9, 96710), (10, 87039), (15, 58026), (18, 48355), (19, 45810), (30, 29013), (38, 22905), (45, 19342), (57, 15270), (90, 9671), (95, 9162), (114, 7635), (171, 5090), (190, 4581), (285, 3054), (342, 2545), (509, 1710), (570, 1527), (855, 1018)]