2138240

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:289

約数の個数: 64

約数和(自身を含む): 5526360

約数和(自身を除く): 3388120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 257, 260, 320, 416, 514, 520, 640, 832, 1028, 1040, 1285, 1664, 2056, 2080, 2570, 3341, 4112, 4160, 5140, 6682, 8224, 8320, 10280, 13364, 16448, 16705, 20560, 26728, 32896, 33410, 41120, 53456, 66820, 82240, 106912, 133640, 164480, 213824, 267280, 427648, 534560, 1069120, 2138240]

約数ペア:

[(1, 2138240), (2, 1069120), (4, 534560), (5, 427648), (8, 267280), (10, 213824), (13, 164480), (16, 133640), (20, 106912), (26, 82240), (32, 66820), (40, 53456), (52, 41120), (64, 33410), (65, 32896), (80, 26728), (104, 20560), (128, 16705), (130, 16448), (160, 13364), (208, 10280), (257, 8320), (260, 8224), (320, 6682), (416, 5140), (514, 4160), (520, 4112), (640, 3341), (832, 2570), (1028, 2080), (1040, 2056), (1285, 1664)]