19428255

素因数分解:

$3^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1$

素因数の和:131

約数の個数: 120

約数和(自身を含む): 44692560

約数和(自身を除く): 25264305

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 49, 55, 63, 77, 81, 89, 99, 105, 135, 147, 165, 189, 231, 245, 267, 297, 315, 385, 405, 441, 445, 495, 539, 567, 623, 693, 735, 801, 891, 945, 979, 1155, 1323, 1335, 1485, 1617, 1869, 2079, 2205, 2403, 2695, 2835, 2937, 3115, 3465, 3969, 4005, 4361, 4455, 4851, 4895, 5607, 6237, 6615, 6853, 7209, 8085, 8811, 9345, 10395, 12015, 13083, 14553, 14685, 16821, 19845, 20559, 21805, 24255, 26433, 28035, 31185, 34265, 36045, 39249, 43659, 44055, 47971, 50463, 61677, 65415, 72765, 79299, 84105, 102795, 117747, 132165, 143913, 185031, 196245, 218295, 239855, 252315, 308385, 353241, 396495, 431739, 555093, 588735, 719565, 925155, 1295217, 1766205, 2158695, 2775465, 3885651, 6476085, 19428255]

約数ペア:

[(1, 19428255), (3, 6476085), (5, 3885651), (7, 2775465), (9, 2158695), (11, 1766205), (15, 1295217), (21, 925155), (27, 719565), (33, 588735), (35, 555093), (45, 431739), (49, 396495), (55, 353241), (63, 308385), (77, 252315), (81, 239855), (89, 218295), (99, 196245), (105, 185031), (135, 143913), (147, 132165), (165, 117747), (189, 102795), (231, 84105), (245, 79299), (267, 72765), (297, 65415), (315, 61677), (385, 50463), (405, 47971), (441, 44055), (445, 43659), (495, 39249), (539, 36045), (567, 34265), (623, 31185), (693, 28035), (735, 26433), (801, 24255), (891, 21805), (945, 20559), (979, 19845), (1155, 16821), (1323, 14685), (1335, 14553), (1485, 13083), (1617, 12015), (1869, 10395), (2079, 9345), (2205, 8811), (2403, 8085), (2695, 7209), (2835, 6853), (2937, 6615), (3115, 6237), (3465, 5607), (3969, 4895), (4005, 4851), (4361, 4455)]