20125665

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:284

約数の個数: 80

約数和(自身を含む): 42746880

約数和(自身を除く): 22621215

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 31, 35, 45, 63, 81, 93, 105, 135, 155, 189, 217, 229, 279, 315, 405, 465, 567, 651, 687, 837, 945, 1085, 1145, 1395, 1603, 1953, 2061, 2511, 2835, 3255, 3435, 4185, 4809, 5859, 6183, 7099, 8015, 9765, 10305, 12555, 14427, 17577, 18549, 21297, 24045, 29295, 30915, 35495, 43281, 49693, 63891, 72135, 87885, 92745, 106485, 129843, 149079, 191673, 216405, 248465, 319455, 447237, 575019, 649215, 745395, 958365, 1341711, 2236185, 2875095, 4025133, 6708555, 20125665]

約数ペア:

[(1, 20125665), (3, 6708555), (5, 4025133), (7, 2875095), (9, 2236185), (15, 1341711), (21, 958365), (27, 745395), (31, 649215), (35, 575019), (45, 447237), (63, 319455), (81, 248465), (93, 216405), (105, 191673), (135, 149079), (155, 129843), (189, 106485), (217, 92745), (229, 87885), (279, 72135), (315, 63891), (405, 49693), (465, 43281), (567, 35495), (651, 30915), (687, 29295), (837, 24045), (945, 21297), (1085, 18549), (1145, 17577), (1395, 14427), (1603, 12555), (1953, 10305), (2061, 9765), (2511, 8015), (2835, 7099), (3255, 6183), (3435, 5859), (4185, 4809)]