998253540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{291887}}^1$

素因数の和:291921

約数の個数: 72

約数和(自身を含む): 3187416960

約数和(自身を除く): 2189163420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 291887, 583774, 875661, 1167548, 1459435, 1751322, 2626983, 2918870, 3502644, 4378305, 5253966, 5545853, 5837740, 8756610, 10507932, 11091706, 13134915, 16637559, 17513220, 22183412, 26269830, 27729265, 33275118, 49912677, 52539660, 55458530, 66550236, 83187795, 99825354, 110917060, 166375590, 199650708, 249563385, 332751180, 499126770, 998253540]

約数ペア:

[(1, 998253540), (2, 499126770), (3, 332751180), (4, 249563385), (5, 199650708), (6, 166375590), (9, 110917060), (10, 99825354), (12, 83187795), (15, 66550236), (18, 55458530), (19, 52539660), (20, 49912677), (30, 33275118), (36, 27729265), (38, 26269830), (45, 22183412), (57, 17513220), (60, 16637559), (76, 13134915), (90, 11091706), (95, 10507932), (114, 8756610), (171, 5837740), (180, 5545853), (190, 5253966), (228, 4378305), (285, 3502644), (342, 2918870), (380, 2626983), (570, 1751322), (684, 1459435), (855, 1167548), (1140, 875661), (1710, 583774), (3420, 291887)]