21326160

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{5227}}^1$

素因数の和:5260

約数の個数: 80

約数和(自身を含む): 70013376

約数和(自身を除く): 48687216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 5227, 10454, 15681, 20908, 26135, 31362, 41816, 52270, 62724, 78405, 83632, 88859, 104540, 125448, 156810, 177718, 209080, 250896, 266577, 313620, 355436, 418160, 444295, 533154, 627240, 710872, 888590, 1066308, 1254480, 1332885, 1421744, 1777180, 2132616, 2665770, 3554360, 4265232, 5331540, 7108720, 10663080, 21326160]

約数ペア:

[(1, 21326160), (2, 10663080), (3, 7108720), (4, 5331540), (5, 4265232), (6, 3554360), (8, 2665770), (10, 2132616), (12, 1777180), (15, 1421744), (16, 1332885), (17, 1254480), (20, 1066308), (24, 888590), (30, 710872), (34, 627240), (40, 533154), (48, 444295), (51, 418160), (60, 355436), (68, 313620), (80, 266577), (85, 250896), (102, 209080), (120, 177718), (136, 156810), (170, 125448), (204, 104540), (240, 88859), (255, 83632), (272, 78405), (340, 62724), (408, 52270), (510, 41816), (680, 31362), (816, 26135), (1020, 20908), (1360, 15681), (2040, 10454), (4080, 5227)]