289142980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{3617}}^1$

素因数の和:4204

約数の個数: 48

約数和(自身を含む): 695350656

約数和(自身を除く): 406207676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 571, 1142, 2284, 2855, 3617, 3997, 5710, 7234, 7994, 11420, 14468, 15988, 18085, 19985, 25319, 36170, 39970, 50638, 72340, 79940, 101276, 126595, 253190, 506380, 2065307, 4130614, 8261228, 10326535, 14457149, 20653070, 28914298, 41306140, 57828596, 72285745, 144571490, 289142980]

約数ペア:

[(1, 289142980), (2, 144571490), (4, 72285745), (5, 57828596), (7, 41306140), (10, 28914298), (14, 20653070), (20, 14457149), (28, 10326535), (35, 8261228), (70, 4130614), (140, 2065307), (571, 506380), (1142, 253190), (2284, 126595), (2855, 101276), (3617, 79940), (3997, 72340), (5710, 50638), (7234, 39970), (7994, 36170), (11420, 25319), (14468, 19985), (15988, 18085)]