1336400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:288

約数の個数: 60

約数和(自身を含む): 3471132

約数和(自身を除く): 2134732

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 257, 260, 325, 400, 514, 520, 650, 1028, 1040, 1285, 1300, 2056, 2570, 2600, 3341, 4112, 5140, 5200, 6425, 6682, 10280, 12850, 13364, 16705, 20560, 25700, 26728, 33410, 51400, 53456, 66820, 83525, 102800, 133640, 167050, 267280, 334100, 668200, 1336400]

約数ペア:

[(1, 1336400), (2, 668200), (4, 334100), (5, 267280), (8, 167050), (10, 133640), (13, 102800), (16, 83525), (20, 66820), (25, 53456), (26, 51400), (40, 33410), (50, 26728), (52, 25700), (65, 20560), (80, 16705), (100, 13364), (104, 12850), (130, 10280), (200, 6682), (208, 6425), (257, 5200), (260, 5140), (325, 4112), (400, 3341), (514, 2600), (520, 2570), (650, 2056), (1028, 1300), (1040, 1285)]