20719872

素因数分解:

$2^8\times 3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^2$

素因数の和:85

約数の個数: 162

約数和(自身を含む): 66124422

約数和(自身を除く): 45404550

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 23, 24, 32, 34, 36, 46, 48, 51, 64, 68, 69, 72, 92, 96, 102, 128, 136, 138, 144, 153, 184, 192, 204, 207, 256, 272, 276, 288, 306, 368, 384, 391, 408, 414, 529, 544, 552, 576, 612, 736, 768, 782, 816, 828, 1058, 1088, 1104, 1152, 1173, 1224, 1472, 1564, 1587, 1632, 1656, 2116, 2176, 2208, 2304, 2346, 2448, 2944, 3128, 3174, 3264, 3312, 3519, 4232, 4352, 4416, 4692, 4761, 4896, 5888, 6256, 6348, 6528, 6624, 7038, 8464, 8832, 8993, 9384, 9522, 9792, 12512, 12696, 13056, 13248, 14076, 16928, 17664, 17986, 18768, 19044, 19584, 25024, 25392, 26496, 26979, 28152, 33856, 35972, 37536, 38088, 39168, 50048, 50784, 52992, 53958, 56304, 67712, 71944, 75072, 76176, 80937, 100096, 101568, 107916, 112608, 135424, 143888, 150144, 152352, 161874, 203136, 215832, 225216, 287776, 300288, 304704, 323748, 406272, 431664, 450432, 575552, 609408, 647496, 863328, 900864, 1151104, 1218816, 1294992, 1726656, 2302208, 2589984, 3453312, 5179968, 6906624, 10359936, 20719872]

約数ペア:

[(1, 20719872), (2, 10359936), (3, 6906624), (4, 5179968), (6, 3453312), (8, 2589984), (9, 2302208), (12, 1726656), (16, 1294992), (17, 1218816), (18, 1151104), (23, 900864), (24, 863328), (32, 647496), (34, 609408), (36, 575552), (46, 450432), (48, 431664), (51, 406272), (64, 323748), (68, 304704), (69, 300288), (72, 287776), (92, 225216), (96, 215832), (102, 203136), (128, 161874), (136, 152352), (138, 150144), (144, 143888), (153, 135424), (184, 112608), (192, 107916), (204, 101568), (207, 100096), (256, 80937), (272, 76176), (276, 75072), (288, 71944), (306, 67712), (368, 56304), (384, 53958), (391, 52992), (408, 50784), (414, 50048), (529, 39168), (544, 38088), (552, 37536), (576, 35972), (612, 33856), (736, 28152), (768, 26979), (782, 26496), (816, 25392), (828, 25024), (1058, 19584), (1088, 19044), (1104, 18768), (1152, 17986), (1173, 17664), (1224, 16928), (1472, 14076), (1564, 13248), (1587, 13056), (1632, 12696), (1656, 12512), (2116, 9792), (2176, 9522), (2208, 9384), (2304, 8993), (2346, 8832), (2448, 8464), (2944, 7038), (3128, 6624), (3174, 6528), (3264, 6348), (3312, 6256), (3519, 5888), (4232, 4896), (4352, 4761), (4416, 4692)]