1619730

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{857}}^1$

素因数の和:880

約数の個数: 64

約数和(自身を含む): 4942080

約数和(自身を除く): 3322350

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 857, 945, 1714, 1890, 2571, 4285, 5142, 5999, 7713, 8570, 11998, 12855, 15426, 17997, 23139, 25710, 29995, 35994, 38565, 46278, 53991, 59990, 77130, 89985, 107982, 115695, 161973, 179970, 231390, 269955, 323946, 539910, 809865, 1619730]

約数ペア:

[(1, 1619730), (2, 809865), (3, 539910), (5, 323946), (6, 269955), (7, 231390), (9, 179970), (10, 161973), (14, 115695), (15, 107982), (18, 89985), (21, 77130), (27, 59990), (30, 53991), (35, 46278), (42, 38565), (45, 35994), (54, 29995), (63, 25710), (70, 23139), (90, 17997), (105, 15426), (126, 12855), (135, 11998), (189, 8570), (210, 7713), (270, 5999), (315, 5142), (378, 4285), (630, 2571), (857, 1890), (945, 1714)]