18723900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{4801}}^1$

素因数の和:4831

約数の個数: 72

約数和(自身を含む): 58353904

約数和(自身を除く): 39630004

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 4801, 9602, 14403, 19204, 24005, 28806, 48010, 57612, 62413, 72015, 96020, 120025, 124826, 144030, 187239, 240050, 249652, 288060, 312065, 360075, 374478, 480100, 624130, 720150, 748956, 936195, 1248260, 1440300, 1560325, 1872390, 3120650, 3744780, 4680975, 6241300, 9361950, 18723900]

約数ペア:

[(1, 18723900), (2, 9361950), (3, 6241300), (4, 4680975), (5, 3744780), (6, 3120650), (10, 1872390), (12, 1560325), (13, 1440300), (15, 1248260), (20, 936195), (25, 748956), (26, 720150), (30, 624130), (39, 480100), (50, 374478), (52, 360075), (60, 312065), (65, 288060), (75, 249652), (78, 240050), (100, 187239), (130, 144030), (150, 124826), (156, 120025), (195, 96020), (260, 72015), (300, 62413), (325, 57612), (390, 48010), (650, 28806), (780, 24005), (975, 19204), (1300, 14403), (1950, 9602), (3900, 4801)]