18689790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1459}}^1$

素因数の和:1537

約数の個数: 64

約数和(自身を含む): 52139520

約数和(自身を除く): 33449730

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 61, 70, 105, 122, 183, 210, 305, 366, 427, 610, 854, 915, 1281, 1459, 1830, 2135, 2562, 2918, 4270, 4377, 6405, 7295, 8754, 10213, 12810, 14590, 20426, 21885, 30639, 43770, 51065, 61278, 88999, 102130, 153195, 177998, 266997, 306390, 444995, 533994, 622993, 889990, 1245986, 1334985, 1868979, 2669970, 3114965, 3737958, 6229930, 9344895, 18689790]

約数ペア:

[(1, 18689790), (2, 9344895), (3, 6229930), (5, 3737958), (6, 3114965), (7, 2669970), (10, 1868979), (14, 1334985), (15, 1245986), (21, 889990), (30, 622993), (35, 533994), (42, 444995), (61, 306390), (70, 266997), (105, 177998), (122, 153195), (183, 102130), (210, 88999), (305, 61278), (366, 51065), (427, 43770), (610, 30639), (854, 21885), (915, 20426), (1281, 14590), (1459, 12810), (1830, 10213), (2135, 8754), (2562, 7295), (2918, 6405), (4270, 4377)]