19919790

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:399

約数の個数: 128

約数和(自身を含む): 61171200

約数和(自身を除く): 41251410

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 19, 22, 27, 30, 33, 38, 45, 54, 55, 57, 66, 90, 95, 99, 110, 114, 135, 165, 171, 190, 198, 209, 270, 285, 297, 330, 342, 353, 418, 495, 513, 570, 594, 627, 706, 855, 990, 1026, 1045, 1059, 1254, 1485, 1710, 1765, 1881, 2090, 2118, 2565, 2970, 3135, 3177, 3530, 3762, 3883, 5130, 5295, 5643, 6270, 6354, 6707, 7766, 9405, 9531, 10590, 11286, 11649, 13414, 15885, 18810, 19062, 19415, 20121, 23298, 28215, 31770, 33535, 34947, 38830, 40242, 47655, 56430, 58245, 60363, 67070, 69894, 73777, 95310, 100605, 104841, 116490, 120726, 147554, 174735, 181089, 201210, 209682, 221331, 301815, 349470, 362178, 368885, 442662, 524205, 603630, 663993, 737770, 905445, 1048410, 1106655, 1327986, 1810890, 1991979, 2213310, 3319965, 3983958, 6639930, 9959895, 19919790]

約数ペア:

[(1, 19919790), (2, 9959895), (3, 6639930), (5, 3983958), (6, 3319965), (9, 2213310), (10, 1991979), (11, 1810890), (15, 1327986), (18, 1106655), (19, 1048410), (22, 905445), (27, 737770), (30, 663993), (33, 603630), (38, 524205), (45, 442662), (54, 368885), (55, 362178), (57, 349470), (66, 301815), (90, 221331), (95, 209682), (99, 201210), (110, 181089), (114, 174735), (135, 147554), (165, 120726), (171, 116490), (190, 104841), (198, 100605), (209, 95310), (270, 73777), (285, 69894), (297, 67070), (330, 60363), (342, 58245), (353, 56430), (418, 47655), (495, 40242), (513, 38830), (570, 34947), (594, 33535), (627, 31770), (706, 28215), (855, 23298), (990, 20121), (1026, 19415), (1045, 19062), (1059, 18810), (1254, 15885), (1485, 13414), (1710, 11649), (1765, 11286), (1881, 10590), (2090, 9531), (2118, 9405), (2565, 7766), (2970, 6707), (3135, 6354), (3177, 6270), (3530, 5643), (3762, 5295), (3883, 5130)]