405307520

素因数分解:

$2^7\times 5^1\times {\mathrm{673}}^1\times {\mathrm{941}}^1$

素因数の和:1633

約数の個数: 64

約数和(自身を含む): 971409240

約数和(自身を除く): 566101720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 673, 941, 1346, 1882, 2692, 3365, 3764, 4705, 5384, 6730, 7528, 9410, 10768, 13460, 15056, 18820, 21536, 26920, 30112, 37640, 43072, 53840, 60224, 75280, 86144, 107680, 120448, 150560, 215360, 301120, 430720, 602240, 633293, 1266586, 2533172, 3166465, 5066344, 6332930, 10132688, 12665860, 20265376, 25331720, 40530752, 50663440, 81061504, 101326880, 202653760, 405307520]

約数ペア:

[(1, 405307520), (2, 202653760), (4, 101326880), (5, 81061504), (8, 50663440), (10, 40530752), (16, 25331720), (20, 20265376), (32, 12665860), (40, 10132688), (64, 6332930), (80, 5066344), (128, 3166465), (160, 2533172), (320, 1266586), (640, 633293), (673, 602240), (941, 430720), (1346, 301120), (1882, 215360), (2692, 150560), (3365, 120448), (3764, 107680), (4705, 86144), (5384, 75280), (6730, 60224), (7528, 53840), (9410, 43072), (10768, 37640), (13460, 30112), (15056, 26920), (18820, 21536)]