20029156

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 41771520

約数和(自身を除く): 21742364

約数列:

[1, 2, 4, 7, 14, 28, 41, 73, 82, 146, 164, 239, 287, 292, 478, 511, 574, 956, 1022, 1148, 1673, 2044, 2993, 3346, 5986, 6692, 9799, 11972, 17447, 19598, 20951, 34894, 39196, 41902, 68593, 69788, 83804, 122129, 137186, 244258, 274372, 488516, 715327, 1430654, 2861308, 5007289, 10014578, 20029156]

約数ペア:

[(1, 20029156), (2, 10014578), (4, 5007289), (7, 2861308), (14, 1430654), (28, 715327), (41, 488516), (73, 274372), (82, 244258), (146, 137186), (164, 122129), (239, 83804), (287, 69788), (292, 68593), (478, 41902), (511, 39196), (574, 34894), (956, 20951), (1022, 19598), (1148, 17447), (1673, 11972), (2044, 9799), (2993, 6692), (3346, 5986)]