28451640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{33871}}^1$

素因数の和:33892

約数の個数: 64

約数和(自身を含む): 97551360

約数和(自身を除く): 69099720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 33871, 67742, 101613, 135484, 169355, 203226, 237097, 270968, 338710, 406452, 474194, 508065, 677420, 711291, 812904, 948388, 1016130, 1185485, 1354840, 1422582, 1896776, 2032260, 2370970, 2845164, 3556455, 4064520, 4741940, 5690328, 7112910, 9483880, 14225820, 28451640]

約数ペア:

[(1, 28451640), (2, 14225820), (3, 9483880), (4, 7112910), (5, 5690328), (6, 4741940), (7, 4064520), (8, 3556455), (10, 2845164), (12, 2370970), (14, 2032260), (15, 1896776), (20, 1422582), (21, 1354840), (24, 1185485), (28, 1016130), (30, 948388), (35, 812904), (40, 711291), (42, 677420), (56, 508065), (60, 474194), (70, 406452), (84, 338710), (105, 270968), (120, 237097), (140, 203226), (168, 169355), (210, 135484), (280, 101613), (420, 67742), (840, 33871)]