15974985

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 29998080

約数和(自身を除く): 14023095

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 61, 65, 79, 85, 183, 195, 221, 237, 255, 305, 395, 663, 793, 915, 1027, 1037, 1105, 1185, 1343, 2379, 3081, 3111, 3315, 3965, 4029, 4819, 5135, 5185, 6715, 11895, 13481, 14457, 15405, 15555, 17459, 20145, 24095, 40443, 52377, 62647, 67405, 72285, 81923, 87295, 187941, 202215, 245769, 261885, 313235, 409615, 939705, 1064999, 1228845, 3194997, 5324995, 15974985]

約数ペア:

[(1, 15974985), (3, 5324995), (5, 3194997), (13, 1228845), (15, 1064999), (17, 939705), (39, 409615), (51, 313235), (61, 261885), (65, 245769), (79, 202215), (85, 187941), (183, 87295), (195, 81923), (221, 72285), (237, 67405), (255, 62647), (305, 52377), (395, 40443), (663, 24095), (793, 20145), (915, 17459), (1027, 15555), (1037, 15405), (1105, 14457), (1185, 13481), (1343, 11895), (2379, 6715), (3081, 5185), (3111, 5135), (3315, 4819), (3965, 4029)]