20370128

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1811}}^1$

素因数の和:1875

約数の個数: 40

約数和(自身を含む): 42690720

約数和(自身を除く): 22320592

約数列:

[1, 2, 4, 8, 16, 19, 37, 38, 74, 76, 148, 152, 296, 304, 592, 703, 1406, 1811, 2812, 3622, 5624, 7244, 11248, 14488, 28976, 34409, 67007, 68818, 134014, 137636, 268028, 275272, 536056, 550544, 1072112, 1273133, 2546266, 5092532, 10185064, 20370128]

約数ペア:

[(1, 20370128), (2, 10185064), (4, 5092532), (8, 2546266), (16, 1273133), (19, 1072112), (37, 550544), (38, 536056), (74, 275272), (76, 268028), (148, 137636), (152, 134014), (296, 68818), (304, 67007), (592, 34409), (703, 28976), (1406, 14488), (1811, 11248), (2812, 7244), (3622, 5624)]