18691440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4099}}^1$

素因数の和:4134

約数の個数: 80

約数和(自身を含む): 61008000

約数和(自身を除く): 42316560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4099, 4560, 8198, 12297, 16396, 20495, 24594, 32792, 40990, 49188, 61485, 65584, 77881, 81980, 98376, 122970, 155762, 163960, 196752, 233643, 245940, 311524, 327920, 389405, 467286, 491880, 623048, 778810, 934572, 983760, 1168215, 1246096, 1557620, 1869144, 2336430, 3115240, 3738288, 4672860, 6230480, 9345720, 18691440]

約数ペア:

[(1, 18691440), (2, 9345720), (3, 6230480), (4, 4672860), (5, 3738288), (6, 3115240), (8, 2336430), (10, 1869144), (12, 1557620), (15, 1246096), (16, 1168215), (19, 983760), (20, 934572), (24, 778810), (30, 623048), (38, 491880), (40, 467286), (48, 389405), (57, 327920), (60, 311524), (76, 245940), (80, 233643), (95, 196752), (114, 163960), (120, 155762), (152, 122970), (190, 98376), (228, 81980), (240, 77881), (285, 65584), (304, 61485), (380, 49188), (456, 40990), (570, 32792), (760, 24594), (912, 20495), (1140, 16396), (1520, 12297), (2280, 8198), (4099, 4560)]