20151992

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 45239040

約数和(自身を除く): 25087048

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 67, 82, 131, 134, 164, 262, 268, 287, 328, 469, 524, 536, 574, 917, 938, 1048, 1148, 1834, 1876, 2296, 2747, 3668, 3752, 5371, 5494, 7336, 8777, 10742, 10988, 17554, 19229, 21484, 21976, 35108, 37597, 38458, 42968, 61439, 70216, 75194, 76916, 122878, 150388, 153832, 245756, 300776, 359857, 491512, 719714, 1439428, 2518999, 2878856, 5037998, 10075996, 20151992]

約数ペア:

[(1, 20151992), (2, 10075996), (4, 5037998), (7, 2878856), (8, 2518999), (14, 1439428), (28, 719714), (41, 491512), (56, 359857), (67, 300776), (82, 245756), (131, 153832), (134, 150388), (164, 122878), (262, 76916), (268, 75194), (287, 70216), (328, 61439), (469, 42968), (524, 38458), (536, 37597), (574, 35108), (917, 21976), (938, 21484), (1048, 19229), (1148, 17554), (1834, 10988), (1876, 10742), (2296, 8777), (2747, 7336), (3668, 5494), (3752, 5371)]