18930656

素因数分解:

$2^5\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:156

約数の個数: 72

約数和(自身を含む): 41776560

約数和(自身を除く): 22845904

約数列:

[1, 2, 4, 8, 16, 17, 23, 32, 34, 46, 68, 89, 92, 136, 178, 184, 272, 289, 356, 368, 391, 544, 578, 712, 736, 782, 1156, 1424, 1513, 1564, 2047, 2312, 2848, 3026, 3128, 4094, 4624, 6052, 6256, 6647, 8188, 9248, 12104, 12512, 13294, 16376, 24208, 25721, 26588, 32752, 34799, 48416, 51442, 53176, 65504, 69598, 102884, 106352, 139196, 205768, 212704, 278392, 411536, 556784, 591583, 823072, 1113568, 1183166, 2366332, 4732664, 9465328, 18930656]

約数ペア:

[(1, 18930656), (2, 9465328), (4, 4732664), (8, 2366332), (16, 1183166), (17, 1113568), (23, 823072), (32, 591583), (34, 556784), (46, 411536), (68, 278392), (89, 212704), (92, 205768), (136, 139196), (178, 106352), (184, 102884), (272, 69598), (289, 65504), (356, 53176), (368, 51442), (391, 48416), (544, 34799), (578, 32752), (712, 26588), (736, 25721), (782, 24208), (1156, 16376), (1424, 13294), (1513, 12512), (1564, 12104), (2047, 9248), (2312, 8188), (2848, 6647), (3026, 6256), (3128, 6052), (4094, 4624)]