20303528

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 45964800

約数和(自身を除く): 25661272

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 41, 56, 74, 82, 148, 164, 239, 259, 287, 296, 328, 478, 518, 574, 956, 1036, 1148, 1517, 1673, 1912, 2072, 2296, 3034, 3346, 6068, 6692, 8843, 9799, 10619, 12136, 13384, 17686, 19598, 21238, 35372, 39196, 42476, 61901, 68593, 70744, 78392, 84952, 123802, 137186, 247604, 274372, 362563, 495208, 548744, 725126, 1450252, 2537941, 2900504, 5075882, 10151764, 20303528]

約数ペア:

[(1, 20303528), (2, 10151764), (4, 5075882), (7, 2900504), (8, 2537941), (14, 1450252), (28, 725126), (37, 548744), (41, 495208), (56, 362563), (74, 274372), (82, 247604), (148, 137186), (164, 123802), (239, 84952), (259, 78392), (287, 70744), (296, 68593), (328, 61901), (478, 42476), (518, 39196), (574, 35372), (956, 21238), (1036, 19598), (1148, 17686), (1517, 13384), (1673, 12136), (1912, 10619), (2072, 9799), (2296, 8843), (3034, 6692), (3346, 6068)]