21382400

素因数分解:

$2^8\times 5^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:296

約数の個数: 108

約数和(自身を含む): 57217692

約数和(自身を除く): 35835292

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 256, 257, 260, 320, 325, 400, 416, 514, 520, 640, 650, 800, 832, 1028, 1040, 1280, 1285, 1300, 1600, 1664, 2056, 2080, 2570, 2600, 3200, 3328, 3341, 4112, 4160, 5140, 5200, 6400, 6425, 6682, 8224, 8320, 10280, 10400, 12850, 13364, 16448, 16640, 16705, 20560, 20800, 25700, 26728, 32896, 33410, 41120, 41600, 51400, 53456, 65792, 66820, 82240, 83200, 83525, 102800, 106912, 133640, 164480, 167050, 205600, 213824, 267280, 328960, 334100, 411200, 427648, 534560, 668200, 822400, 855296, 1069120, 1336400, 1644800, 2138240, 2672800, 4276480, 5345600, 10691200, 21382400]

約数ペア:

[(1, 21382400), (2, 10691200), (4, 5345600), (5, 4276480), (8, 2672800), (10, 2138240), (13, 1644800), (16, 1336400), (20, 1069120), (25, 855296), (26, 822400), (32, 668200), (40, 534560), (50, 427648), (52, 411200), (64, 334100), (65, 328960), (80, 267280), (100, 213824), (104, 205600), (128, 167050), (130, 164480), (160, 133640), (200, 106912), (208, 102800), (256, 83525), (257, 83200), (260, 82240), (320, 66820), (325, 65792), (400, 53456), (416, 51400), (514, 41600), (520, 41120), (640, 33410), (650, 32896), (800, 26728), (832, 25700), (1028, 20800), (1040, 20560), (1280, 16705), (1285, 16640), (1300, 16448), (1600, 13364), (1664, 12850), (2056, 10400), (2080, 10280), (2570, 8320), (2600, 8224), (3200, 6682), (3328, 6425), (3341, 6400), (4112, 5200), (4160, 5140)]