20329240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1163}}^1$

素因数の和:1216

約数の個数: 64

約数和(自身を含む): 50284800

約数和(自身を除く): 29955560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 76, 92, 95, 115, 152, 184, 190, 230, 380, 437, 460, 760, 874, 920, 1163, 1748, 2185, 2326, 3496, 4370, 4652, 5815, 8740, 9304, 11630, 17480, 22097, 23260, 26749, 44194, 46520, 53498, 88388, 106996, 110485, 133745, 176776, 213992, 220970, 267490, 441940, 508231, 534980, 883880, 1016462, 1069960, 2032924, 2541155, 4065848, 5082310, 10164620, 20329240]

約数ペア:

[(1, 20329240), (2, 10164620), (4, 5082310), (5, 4065848), (8, 2541155), (10, 2032924), (19, 1069960), (20, 1016462), (23, 883880), (38, 534980), (40, 508231), (46, 441940), (76, 267490), (92, 220970), (95, 213992), (115, 176776), (152, 133745), (184, 110485), (190, 106996), (230, 88388), (380, 53498), (437, 46520), (460, 44194), (760, 26749), (874, 23260), (920, 22097), (1163, 17480), (1748, 11630), (2185, 9304), (2326, 8740), (3496, 5815), (4370, 4652)]