19580080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:374

約数の個数: 80

約数和(自身を含む): 49934304

約数和(自身を除く): 30354224

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 67, 80, 104, 130, 134, 208, 260, 268, 281, 335, 520, 536, 562, 670, 871, 1040, 1072, 1124, 1340, 1405, 1742, 2248, 2680, 2810, 3484, 3653, 4355, 4496, 5360, 5620, 6968, 7306, 8710, 11240, 13936, 14612, 17420, 18265, 18827, 22480, 29224, 34840, 36530, 37654, 58448, 69680, 73060, 75308, 94135, 146120, 150616, 188270, 244751, 292240, 301232, 376540, 489502, 753080, 979004, 1223755, 1506160, 1958008, 2447510, 3916016, 4895020, 9790040, 19580080]

約数ペア:

[(1, 19580080), (2, 9790040), (4, 4895020), (5, 3916016), (8, 2447510), (10, 1958008), (13, 1506160), (16, 1223755), (20, 979004), (26, 753080), (40, 489502), (52, 376540), (65, 301232), (67, 292240), (80, 244751), (104, 188270), (130, 150616), (134, 146120), (208, 94135), (260, 75308), (268, 73060), (281, 69680), (335, 58448), (520, 37654), (536, 36530), (562, 34840), (670, 29224), (871, 22480), (1040, 18827), (1072, 18265), (1124, 17420), (1340, 14612), (1405, 13936), (1742, 11240), (2248, 8710), (2680, 7306), (2810, 6968), (3484, 5620), (3653, 5360), (4355, 4496)]