15123780

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{4001}}^1$

素因数の和:4026

約数の個数: 96

約数和(自身を含む): 53786880

約数和(自身を除く): 38663100

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 4001, 8002, 12003, 16004, 20005, 24006, 28007, 36009, 40010, 48012, 56014, 60015, 72018, 80020, 84021, 108027, 112028, 120030, 140035, 144036, 168042, 180045, 216054, 240060, 252063, 280070, 336084, 360090, 420105, 432108, 504126, 540135, 560140, 720180, 756189, 840210, 1008252, 1080270, 1260315, 1512378, 1680420, 2160540, 2520630, 3024756, 3780945, 5041260, 7561890, 15123780]

約数ペア:

[(1, 15123780), (2, 7561890), (3, 5041260), (4, 3780945), (5, 3024756), (6, 2520630), (7, 2160540), (9, 1680420), (10, 1512378), (12, 1260315), (14, 1080270), (15, 1008252), (18, 840210), (20, 756189), (21, 720180), (27, 560140), (28, 540135), (30, 504126), (35, 432108), (36, 420105), (42, 360090), (45, 336084), (54, 280070), (60, 252063), (63, 240060), (70, 216054), (84, 180045), (90, 168042), (105, 144036), (108, 140035), (126, 120030), (135, 112028), (140, 108027), (180, 84021), (189, 80020), (210, 72018), (252, 60015), (270, 56014), (315, 48012), (378, 40010), (420, 36009), (540, 28007), (630, 24006), (756, 20005), (945, 16004), (1260, 12003), (1890, 8002), (3780, 4001)]