19399680

素因数分解:

$2^{10}\times 3^2\times 5^1\times {\mathrm{421}}^1$

素因数の和:452

約数の個数: 132

約数和(自身を含む): 67379052

約数和(自身を除く): 47979372

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 421, 480, 512, 576, 640, 720, 768, 842, 960, 1024, 1152, 1263, 1280, 1440, 1536, 1684, 1920, 2105, 2304, 2526, 2560, 2880, 3072, 3368, 3789, 3840, 4210, 4608, 5052, 5120, 5760, 6315, 6736, 7578, 7680, 8420, 9216, 10104, 11520, 12630, 13472, 15156, 15360, 16840, 18945, 20208, 23040, 25260, 26944, 30312, 33680, 37890, 40416, 46080, 50520, 53888, 60624, 67360, 75780, 80832, 101040, 107776, 121248, 134720, 151560, 161664, 202080, 215552, 242496, 269440, 303120, 323328, 404160, 431104, 484992, 538880, 606240, 646656, 808320, 969984, 1077760, 1212480, 1293312, 1616640, 1939968, 2155520, 2424960, 3233280, 3879936, 4849920, 6466560, 9699840, 19399680]

約数ペア:

[(1, 19399680), (2, 9699840), (3, 6466560), (4, 4849920), (5, 3879936), (6, 3233280), (8, 2424960), (9, 2155520), (10, 1939968), (12, 1616640), (15, 1293312), (16, 1212480), (18, 1077760), (20, 969984), (24, 808320), (30, 646656), (32, 606240), (36, 538880), (40, 484992), (45, 431104), (48, 404160), (60, 323328), (64, 303120), (72, 269440), (80, 242496), (90, 215552), (96, 202080), (120, 161664), (128, 151560), (144, 134720), (160, 121248), (180, 107776), (192, 101040), (240, 80832), (256, 75780), (288, 67360), (320, 60624), (360, 53888), (384, 50520), (421, 46080), (480, 40416), (512, 37890), (576, 33680), (640, 30312), (720, 26944), (768, 25260), (842, 23040), (960, 20208), (1024, 18945), (1152, 16840), (1263, 15360), (1280, 15156), (1440, 13472), (1536, 12630), (1684, 11520), (1920, 10104), (2105, 9216), (2304, 8420), (2526, 7680), (2560, 7578), (2880, 6736), (3072, 6315), (3368, 5760), (3789, 5120), (3840, 5052), (4210, 4608)]