2891194.00000000

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 55792800

約数和(自身を除く): 32001320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 89, 163, 164, 178, 205, 326, 328, 356, 410, 445, 652, 712, 815, 820, 890, 1304, 1630, 1640, 1780, 3260, 3560, 3649, 6520, 6683, 7298, 13366, 14507, 14596, 18245, 26732, 29014, 29192, 33415, 36490, 53464, 58028, 66830, 72535, 72980, 116056, 133660, 145070, 145960, 267320, 290140, 580280, 594787, 1189574, 2379148, 2973935, 4758296, 5947870, 11895740, 23791480]

約数ペア:

[(1, 23791480), (2, 11895740), (4, 5947870), (5, 4758296), (8, 2973935), (10, 2379148), (20, 1189574), (40, 594787), (41, 580280), (82, 290140), (89, 267320), (163, 145960), (164, 145070), (178, 133660), (205, 116056), (326, 72980), (328, 72535), (356, 66830), (410, 58028), (445, 53464), (652, 36490), (712, 33415), (815, 29192), (820, 29014), (890, 26732), (1304, 18245), (1630, 14596), (1640, 14507), (1780, 13366), (3260, 7298), (3560, 6683), (3649, 6520)]